I tried in spring 2004, felt like an early beta here in the Northeast. 2001-02 is marketing spin!
Nat AT&T Wireless started GSM migration from TDMA at least 2001-2002 timeframe, that's 5 years. And Cingular (previous to AT&T Wireless merger) was GSM starting in 2001 as well....again 5-6 years ago.
