There was a very interesting post here... I'd love to know if anything came of it:

http://forum.winehq.org/viewtopic.ph...94e10c9dad11a7

(zaurus discussion here)
http://www.oesf.org/forum/index.php?showtopic=14829

It seems you can use X86 Wine inside qemu to emulate a windows program (albeit slowly). I imagine this method would actually integrate the applications with the N900's windowing system too.

If Wine could possibly be compiled for ARM and then be used by qemu emulating an X86 we might actually get some acceptable performance - however I imagine this is much more easily said than done.