just to update i was using evdo usb not wifi.
Today i got the 3g nitro usb (red and black) under the new promo for 6k with first 3 months free. its software is slightly different to that of the white evdo 3.1 usb i used earlier. there is Rev B written next to the signal indicator in this software.
also this usb showing me 5 signal bars whereas the white one showed me 3 signals in my room.
tested speed 680k max on blizzard downloader of wow
550k max on steam dl
4.1MB on
www.speedtest.net
avg speed is around 500-600k
havent tested fully with torrents yet will update