Thank you for this information. I'm wondering if you gave fluxbox a try. Fluxbox happens to be my favorite window manager. It is also extremely functional, configurable, and lightweight.

I still run fluxbox on pdaXrom in my Zaurus SL-C1000 (an old ARM pda which could be considered a forefather of the N900). It's fluxbox version 1.0, and I compiled it myself. Amazing how fast it runs. I also configured key shortcuts so that I can control everything (including window sizing, moving, closing, etc) from the keyboard. Also, unlimited desktops (if I remember correctly).