Hey guys, So I have iPad 3 on order and it will deliver on the 16th. I have an iPad 2, iPod touch 2nd generation, and an aluminum MacBook from 2008. I want to know what is the big deal about a retina display? Will I be able to tell the difference? Or did I just waste money? I honestly don't know. The screen on my iPod and iPad look the same. I've held a friends iPhone 4 and I see the screen looks a little shinier and more detailed. Is it something like that? Thanks in advance. I know it's a stupid question but I'm not familiar with all of those high tech items. Thanks.