If you have any "stability" issues with your Joiku connection or simply a very slow connection then there is an easy solution: Just run a permanent ping from your N900 to the connected PC/NB, that way the connection "stays alive". It seems to be an issue with the WLAN power management of the N900. It would be even better if we could disable the "WLAN Energy Save Mode" for the Joiku connection, then such a ping wouldn't be required and reaction / speed would be even better. I tested that with my router connection and SSH / SFTP, the speed / reaction difference is huge! The terminal is running so fast and smooth <3