Maybe it is my english but it is bugfixing, not workaround. In order to have working bluetooth mouse one has to patch and recompile:

kernel bluetooth stack
bluetooth.ko (hci_conn.c and hci_event.c)

xorg evdev driver
evdev_drv.so (evdev.c)

both modules contain bugs, so no workaround, sorry

One of the reasons to open new thread here is that i cannot proceed further on my own, as i lack both knowledge on linux bluetooth stack and X server input drivers and time to learn from scratch debian packaging system.

Or maybe after 3 (yes three) weeks of sleepest nights strugling with N900/BT mouse i feel a little tired

I don't think it is good idea to attach patched versions of the above modules here, as (having lack in knowledge ) i am not sure how my fixes will affect battery life, other BT devices compatibility, etc.

I am C/C++ developer, but my experience with nuts and bolts is mainly in Windows and Linux 2.4 kernel, so...

Come on guys, lets make this thing work for everyone