Below is the callstack I just hit in xcode when my app was handling StoreKit:REQUEST_PRODUCTS_COMPLETE.  It's similar to other crashes that happen when doing a lot of UI work in response to a system level event like this, e.g. responding to CLLocationManager or Parse background events.  If I wrap my response in a Timer.delayedCall(1, doUIWork) it goes away but I thought the 
@atilim would like to see this stack.
Thread 1, Queue : com.apple.main-thread
#0	0x2e2211a6 in agxuEndRenderCommand ()
#1	0x2e2423d8 in eAGXBlitStatus agxuBlitRender(AGXContextRec*, AGXResourceDescriptor const&, AGXResourceDescriptor const&, AGXBlitState const&, GLTRectangleRec const&, GLTRectangleRec const&) ()
#2	0x2e24333e in eAGXBlitStatus agxuBlit(AGXContextRec*, AGXResourceDescriptor const&, AGXResourceDescriptor const&, AGXBlitState const&, GLTRectangleRec const&, GLTRectangleRec const&) ()
#3	0x2e21b15a in glrWriteTextureData ()
#4	0x3153857a in glTexImage2D_Exec ()
#5	0x00925284 in tex_image2D(__GLIContextRec*, unsigned int, int, unsigned int, int, int, int, unsigned int, unsigned int, void const*) ()
#6	0x315e87e0 in glTexImage2D ()
#7	0x001603d0 in g_private::TextureManager::genAndUploadTexture(g_private::CommonElement*, void const*) at /Users/atilim/myprojects/gideros/libgid/src/gtexture.cpp:666
#8	0x0015f84e in g_private::TextureManager::create(int, int, int, int, int, int, void const*, void const*, unsigned long) at /Users/atilim/myprojects/gideros/libgid/src/gtexture.cpp:146
#9	0x0015f6b0 in gtexture_create at /Users/atilim/myprojects/gideros/libgid/src/gtexture.cpp:706
#10	0x001bb260 in TextureManager::createTextureFromDib(Dib const&, TextureParameters const&) at /Users/atilim/myprojects/gideros/2dsg/texturemanager.cpp:250
#11	0x001c17ea in TTTextField::createGraphics() at /Users/atilim/myprojects/gideros/2dsg/tttextfield.cpp:78
#12	0x001e5e04 in TextFieldBinder::setText(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/textfieldbinder.cpp:129
#13	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#14	0x000e57f8 in luaV_execute at /Users/atilim/myprojects/gideros/lua/src/lvm.c:587
#15	0x000e27ae in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:377
#16	0x000e274a in lua_call at /Users/atilim/myprojects/gideros/lua/src/lapi.c:782
#17	0x001dac00 in eventClosureWithData(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:902
#18	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#19	0x000e27a4 in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:376
#20	0x000e274a in lua_call at /Users/atilim/myprojects/gideros/lua/src/lapi.c:782
#21	0x001da700 in CppLuaBridge::luaEvent(LuaEvent*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:803
#22	0x001a78ae in EventDispatcher::dispatchEvent(Event*) at /Users/atilim/myprojects/gideros/ios/iosplayer/../../libgideros/eventdispatcher.h:203
#23	0x001da362 in EventDispatcherBinder::dispatchEvent(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:1102
#24	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#25	0x000e57f8 in luaV_execute at /Users/atilim/myprojects/gideros/lua/src/lvm.c:587
#26	0x000e27ae in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:377
#27	0x000e274a in lua_call at /Users/atilim/myprojects/gideros/lua/src/lapi.c:782
#28	0x001dac00 in eventClosureWithData(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:902
#29	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#30	0x000e27a4 in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:376
#31	0x000e274a in lua_call at /Users/atilim/myprojects/gideros/lua/src/lapi.c:782
#32	0x001da700 in CppLuaBridge::luaEvent(LuaEvent*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:803
#33	0x001a78ae in EventDispatcher::dispatchEvent(Event*) at /Users/atilim/myprojects/gideros/ios/iosplayer/../../libgideros/eventdispatcher.h:203
#34	0x001da362 in EventDispatcherBinder::dispatchEvent(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:1102
#35	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#36	0x000e57f8 in luaV_execute at /Users/atilim/myprojects/gideros/lua/src/lvm.c:587
#37	0x000e27ae in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:377
#38	0x000e274a in lua_call at /Users/atilim/myprojects/gideros/lua/src/lapi.c:782
#39	0x001dac00 in eventClosureWithData(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:902
#40	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#41	0x000e27a4 in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:376
#42	0x000e274a in lua_call at /Users/atilim/myprojects/gideros/lua/src/lapi.c:782
#43	0x001da700 in CppLuaBridge::luaEvent(LuaEvent*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:803
#44	0x001a78ae in EventDispatcher::dispatchEvent(Event*) at /Users/atilim/myprojects/gideros/ios/iosplayer/../../libgideros/eventdispatcher.h:203
#45	0x001da362 in EventDispatcherBinder::dispatchEvent(lua_State*) at /Users/atilim/myprojects/gideros/luabinding/eventdispatcherbinder.cpp:1102
#46	0x000e4f46 in luaD_precall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:319
#47	0x000e27a4 in luaD_call at /Users/atilim/myprojects/gideros/lua/src/ldo.c:376
#48	0x000e4b96 in luaD_rawrunprotected at /Users/atilim/myprojects/gideros/lua/src/ldo.c:116
#49	0x000e2856 in luaD_pcall at /Users/atilim/myprojects/gideros/lua/src/ldo.c:463
#50	0x000e2812 in lua_pcall at /Users/atilim/myprojects/gideros/lua/src/lapi.c:821
#51	0x00080f60 in dispatchEvent(lua_State*, char const*, NSError*, NSArray*, NSArray*, SKPaymentTransaction*) at xcode/GiderosiOSPlayer/GiderosiOSPlayer/Plugins/storekit.mm:197
#52	0x00081140 in -[StoreKitHelper productsRequest:didReceiveResponse:] at xcode/GiderosiOSPlayer/GiderosiOSPlayer/Plugins/storekit.mm:247
#53	0x31af5136 in __34-[SKProductsRequest _handleReply:]_block_invoke ()
#54	0x39c200c2 in _dispatch_call_block_and_release ()
#55	0x39c200ae in _dispatch_client_callout ()
#56	0x39c229a8 in _dispatch_main_queue_callback_4CF ()
#57	0x2f3a55b0 in __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ ()
#58	0x2f3a3e7c in __CFRunLoopRun ()
#59	0x2f30e470 in CFRunLoopRunSpecific ()
#60	0x2f30e252 in CFRunLoopRunInMode ()
#61	0x340422ea in GSEventRunModal ()
#62	0x31bc3844 in UIApplicationMain ()
#63	0x000736ae in main
#64	0x00073638 in start ()                
 
                
Comments
Thanks for your help on this.
basically it seems to relate to this same problem:
http://www.giderosmobile.com/forum/discussion/comment/30514
You are setting text inside REQUEST_PRODUCTS_COMPLETE callback
and you are using objective c bridge, right?
And somehow they does not sync.
Do you use toobjc somewhere in that block?
Either way, will set this a higher priority in our issue tracker
Note also that this has only happened to me once, out of hundreds of times I've tested this code path.