Does anyone know if AT&T will port a number after activation? I was just going to go into the Apple store on launch day (or shortly thereafter) to get an iPhone 3GS. However, now that I've seen the Bing cashback deal, I'm thinking I'm definitely going to order from AT&T. The problem is that my current cell phone (w/ T-Mobile) is my only phone. Moreover, these next couple weeks are going to be busy for me, so I can't really be without a phone for very long at all. So, is it possible for me to pre-order the iPhone now through AT&T, tell them I want a new number, and then port over my old T-Mobile number when I actually get the iPhone? As a related question, do people know when AT&T will typically port a number over? Will they start the process when I order (i.e. now, for example), when they ship the phone (i.e. next Thursday), or does it happen when I receive the phone? Thanks!