There is no numbers on the on-screen keyboard and i do believe that the right click is the center button on the d-pad.

If i was to give it a fair rating from 1-10, i wold give it a 7.

p.s. you shuld install Debian too, you get a similar expreince to maemo like a fully functional on-screen keyboard and much like maemo you can press and hold your styles to right click pluse you get a fully functional desktop, the only real bad side is that it is a pain to get wifi and sound working properly.