We see hardware limits, but not software limits yet. N900 has 2000 times more RAM and 200 times more powerfull CPU than what is minimum system requirements for this OS: http://www.symbos.de/index.htm Even maximum ram for it is 1024 KB. So we only have to push some limits with optimized code for N900. Or at least make TSL 1.3 support with this https://github.com/classilla/cryanc And N900 is fast enough to work both client and server for it.