Xperia Play CDMA runs on CDMA 20001x and CDMA Evdo Rev. A on dual band CDMA 800 and 1900 Mhz frequency. Its specs include 4" display, 1 Ghz processor, 512 ram and special integrated gaming board.
Sony Xperia Play CDMA Specifications:
Network : CDMA 20001x, EVDO Rev. ABand : CDMA 800, 1900 Mhz
Processor : Scorpion ARMv71 Ghz
3D Graphic Accelerator : Andreno GPU processor)
RAM : 512 MB
Display : 4" Touchscreen, Proximity, light sensor
Storage : built in 400 MB
External Storage : microSD up to 32 GB
Camera : 5 MP LED, auto focus, stabilizer, geo tagging, Video HD capture
Browser : HTML, Flash, Social media.
Connectivity : Bluetooth, Wi-FI BG, microUSB, DLNA, Tethering, 3.5mm audio jack
Messaging: SMS, E-mail (IMAP, SMTP, POP3)
Multimedia : Music player, MPEG4 video playback, YouTube streaming.
GPS : A-GPS
Another SE Xperia Play's specs include, Phonebook, Calendar, alarm, calculator, World clock, and additional microphone.
UPDATE :
26 May 2011 - Sony Ericcson Xperia Play official available in Verizon since May 26 2011.