Portability, not-so-smortability?

I helped someone switch carriers from Cingular to AT&T Wireless this week and I have to say it went fairly smoothly.

She ordered her new phone and GSM service from the AT&T Wireless business web site on Wednesday, had the phone and SIM on Friday, and had her number successfully moved, her new phone activated, and her old account closed by the following Monday. Five days turnaround time, without us having to do anything but place the order and with no interruption to service to her phone number (AT&T built in a grace period before they automatically closed her old account and activated the new one at the same time, so she was able to cut over immediately to the new SIM).

Not bad at all, actually. Maybe I should re-think my previous post.

Anybody else have experience with number portability working well, or not so well? Comment here.