Seem to be getting EvDO intermittantly. The maximum data transfer reached was around 400kbps. Strangely though the moment I get EvDO only when the strength is low (2-3bars). If I re-position the device for better signal strength (3-4bars) I get transferred to 1xRTT. When it shifts to EvDO, the indicator for roaming mode is also enabled. So I am assuming it is connecting to some other tower where EvDO has been properly configured.