I'm using a nexus 7 2013 with the n900 as hotspot for internet access. The N900 is very unstable as hotspot - I connect to it and always after a few minutes I get disconnected and being unable to connect to it again. This same behavior happened from a laptop with windows, and when using both Joikuspot and QT mobile hot spot.

I also tried running this script which did not allow a device to connect to the n900 at all (although the hotspot could be seen in the list of the discovered wireless access networks):
http://talk.maemo.org/showthread.php?t=73406

Anyone uses the n900 as hotspot and getting a stable connection?

i currently have the following installed:

Community SSU version = 2011.38-1Tmaemo9.1+thumb1
Kernel Power Version = 2.6.28.10-power52

update:

I also tried to connect from a second n900 (so this is not related to android/pc) - connection "seems" to work after 2 minutes of waiting (the wifi icon on top stops flashing) - but no internet, no access to the n900 with the enabled hotspot - this was tried with joiku.