LG Thrive works on GSM, UMTS and HSDPA network on Quadband GSM and UMTS 850, 1900 and 2100 Mhz frequency operated by T-Mobile. It has a 3.2 inches capacitive touchscreen display and powered by 600 Mhz processor, running Google Android 2.2 Froyo as it Operating System.
LG Thrive GSM HSDPA Specs:
Network : GSM, EDGE, HSUPA, HSDPABand : Quadband GSM, HSUPA 850, 1900, 2100 Mhz
Processor : 600 Mhz
RAM : 256 MB
Operating System : Google Android 2.2 Froyo
Camera : 3.2 MP AF, Zoom
Music : MP3, AAC, AAC+, WMA, WAV, AMR
Video : MP4, 3GP, Youtube player
Browser : HTML, Flash
Messaging : SMS, email
Internal storage : 150 MB
External memory : microSD up to 32 GB
Connecivity : Bluetooth 2.1, MicroUSB, 3.5mm sound port
Wi-Fi Tethering : Yes
GPS : Assisted-GPS
Battery : 1500 mAh
UPDATE:
LG Thrive available with AT&T since 17 May 2011 in retail and online stores.