Hi All, I got a 3G for $100 on craigslist last year that I've been using for learning and development. My philosophy is that if your code works on old hardware, newer stuff should be fine. However from my understanding, a 3G can't be updated to support ARC, only 3GS and up. And that it's a good idea to use ARC for multiple reasons. Therefore I've been browsing Craigslist for a used iPhone 4, they seem about $200. I'm worried 3GS support may be dropped sooner than 4. I also have an Ipad2, and the (boring) simulator of course. Do people think this is a good approach?