[PDA/Cellphone] T-Mobile improved coverage

Two days ago we started getting signals on our T-Mobile phones at home. The carrier is ATT Wireless, so I could use voice but not GPRS. I called T-Mobile, but this time actually delighted, and was told that it's a new agreement between T-Mobile and ATT Wireless. Guess the Cingular/ATT Wireless merger does benefit T-Mobile customers after all.