How well does it work to do, say, 1-2 hours of spreadsheet work using the keyboard? What I'm particularly wondering about that is whether the screen is too small at the extra distance required by this configuration. I can imagine the 5" isn't too bad when held closer to your eyes like a tablet, but does it work well in it's "desktop" mode?
I have a Zaurus C760 which I love, but for the occasional semi-serious spreadsheet work I need to do on the road, its smaller screen and 640x480 resolution just isn't quite enough screen real estate. Most of my travel use would be lighter than this, but when I need to work on a spreadsheet, I really need to.