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CDMA Cellular is offered by Verizon and Sprint in the US. The data services available for CDMA are 1xRTT (Single Carrier (1x) Radio Transmission Technology) (128kbits/s) and EvDO (Evolution Data Only, Evolution Data Optimized) (768kbits/s).
Windows Mobile Pocket PC and Smartphone devices are available from Verizon and Sprint in the US.
[http://www.pocketpcfaq.com/faqs/cellularprimer.htm|Cellular Data Primer]
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