I'm already holding the tablet with my left hand, since that's where the directional and other buttons are located, and my forefinger lays across the top. If there were a shift-like function button along the top the way we already have +, - and maximize buttons that could be pressed while tapping to get right-clicks, that would seem convenient. Maybe the already existing trio of keys up there could be used that way if you tap WHILE you're pressing one of them (not tappnig lets them behave as normal)? The other thing that I keep wishing for is a scroll wheel. If there were an Intellimouse style scroll wheel on that vast and unused right side of the screen--that would be VERY convenient for those times when I'm reading down a web page, RSS feeds or eBooks (where I'd probably not have the stylus out anyway).