Ok, so there was not much response to my previous post, so I decided to take it upon myself to make this work. I've been able to successfully install the maemo developers tools, scratchbox, etc. I can extract and repack Nokia firmwares and reflash them to the device thanks to the helpful tutorials on the wiki.

I have even managed to modify the startup script. Instead of launching maemo-af-desktop it now launches browser which boots me into the opera browser which isn't quite fullscreen, but the left menu bar is gone at least. I still have an ugly menu bar at the top, and now I can not access any control panels, or wifi settings.

Is there a command line parameter for the browser that will replicate the effect I get when i press the 'fullscreen' hardbutton on the 770 device?

Also where would I find the files that store the options for the OS such as default wifi connection and power settings?

Once I get this working I will be happy to share my rootfs for anyone trying to accomplish a similar task with a fullscreen browser.