I'm mainly going to miss the free wireless tethering after rooting my Incredible. Not much else really.
Is very little. But one I found out the other night is not being able to sync the iphone with my coputer. I don't even know if this true but certainlly a count aginst it. I was wondering if this is only the case on windows platform and maybe you can use with another mac. Other than that there isn't anything else that I would miss. Not the poor battery life or any of the other issues to numerous to mention.
Why can't you sync to your computer? The iPhone syncs fine with windows.