Ive got a little question about installing to emmc.

Is it possible to create a partition out of the internal memory so that if I choose to remove nitdroid it wont affect the maemo part of my system?

Last time I installed nitdroid 0.0.9 and put Gingerbread on top of it, then tried putting 0.0.9 over THAT again and so forth it all went to ****, and wobbling around in xterm trying to red myself of nitdroid completely for a fresh install was pure hell and led to reflashing the entire emmc and fw =P .

So thus Im wondering if there is a way to test this out some way that would make removal clean and easy?