ok, i have managed to hack xvkbd enough to be usefull, enjoy and comment!

installation:
wget -O/usr/local/bin/xvkbd.gz http://mrrau.dyndns.org:23280/n800/xvkbd/xvkbd.gz
gzip -d /usr/local/bin/xvkbd.gz
chmod +x /usr/local/bin/xvkbd
wget -O/usr/share/applications/hildon/xvkbd.desktop http://mrrau.dyndns.org:23280/n800/xvkbd/xvkbd.desktop

ps. why another osk? because xkbd is a little unstable right now and i wanted something more reliable
ps2. international layouts aren't included for now (because it's too late and i will package whole thing properly soon)
ps3. [update 2015-12-20] links are inactive, i've attached the files to this post