Image Scaling

twisttap

Hello,
I am looking for a tutorial that explains Scale Modes (Mostly Pixel Perfect) and how to use Image Scales (Suffix and Scale)
Is there a chart available for scale multipliers iPhone Screens ?

thanks

twisttap

Found it but for future reference:
http://www.giderosmobile.com/documentation/automatic_screen_scaling.html

http://www.giderosmobile.com/documentation/automatic_image_resolution.html

Cheers