What do you mean? This works great for me. Photos and setup in this thread: http://talk.maemo.org/showthread.php?t=31117 At this time the N900 does not support OTG and thus not even a usb keyboard will work. The community hopes this changes in the future. I should also ask, what chipset does your Alfa usb card use? If it is a RTL8187L (detects as RTL8187) then you are golden, the RTL8187B is a crappier version and uses a different driver. lsusb + the model # should suffice.