iPhone 3 v 4 v iPad ui. Raster vs vector
<p>I'm the design guy on a new iPhone project and am curious on the eat practices for the up elements in the iPhone 3-4 dev. I know the dpi is different between the two and am curious how best to handle this with the dev guys. Do I need to make 2 of everything or do we need to figure how to make vectors of things like buttons , backgrounds and other images? </p>

<p>Any help , examples and links would be awesome. My goal is to do the best for the app with asking for dumb things from the developer</p>

<p>Thanks </p>
