N810 OS2008
Treo 680
T-Mobile (USA) and also when roaming on T-Mobile (UK)
Access point name: internet2.voicestream.com
Dial-up number: *99***1#
No User ID or Password
N800 OS2008 (I haven't tested Diablo with this yet)
Nokia 9300
AT&T (USA)
Works okay, but you have to limit to applications that only need one IP stack. That is the web browser works, but the RSS feed reader doesn't (the phone kills the connection due to too many stack requests at a time).
Service Provider: Iusacell 3G CDMA (Mexico)
Phone: Nokia 6275i
Works fine in my N800 Running Diablo
Phone plan: Iusapack Cosmo (all-in-one) with 3G Data unlimited for 20dlls