Ok, i think that the OS2008 Gnumeric port is now ready for a first release, you can get the packages by adding the following catalogue to you application manager (sorry, no .install-file available yet):

Address: http://people.debian.org/~tschmidt/maemo/chinook
Distribution: /
Components:

Afterwards, the gnumeric package should be available in your application manager.

Known "Problems" so far:

* Switching to Fullscreen with the hardware-button does not work, except if you have connected a keyboard (yes, i know, this is stupid and i am looking for an easy way to fix this issue)
* No icon for the task switcher yet

Have fun with the package, if no serious bugs appear, i will try to upload it to extras-devel soon.