The problem is not necessarily the clockspeed but the drivers and software do not implement vsync....and that is the reason horizontal scrolling always is tearing...which is very annoying. They have already stated that there are new drivers available but they will only be released for Harmattan....so now the question is if there will ever be a fully functional release of Harmattan for the N900. Guess it depends on if Nokia is willing to drop all their binary drivers to the public or not.....I'm not holding my breath.....