Hmm, I've always seemed to have this problem with my Thinkoutside Sierra bluetooth keyboard also-- os2007 and os2008... it really makes typing on my N800 a pain.

The lag occurs no matter what I've tried (different passkeys, different ways of pairing the keyboard), but the only thing that seems to remain constant is that the program "hildon-input-method" uses up to 55% of CPU while typing on my BT keyboard (os2007 and 2008).

I'll try killing that process next time (yeah, I know, there goes my virtual keyboard, but I can always restart it when I'm done using my BT keyboard)

Anyone got any suggestions?