Retina Display and older iPhones - resolution help?

xyloFUN

Hi,
i've made my artwork the other day and chose the hi res for the new iphone (found the dimensions in the wiki).
Now i want to be sure that i can make and finish the app and that it will load into older iphones as well.
IS that what resolution independence does?
OR, is it just best to make high quality png images and use the 480x360 or what ever the iphone 3 uses?

thanks for pointing me in the right direction

p.s. just to be sure, there is no way to preview on the ipad, right?

diegocs

Use your 960 x 640 images and drag them into gamesalad (you need to have the resolution independence box checked first), gamesalad will automatically make lower resolution images for old iphones

-Diego