sudo aptitude install python-fuse python-elementtree
Karmic only has python-gdata 1.2.4-0ubuntu2 which is too old so get gdata 2.0.6 from here:
and install that. Look for the README.txt and INSTALL.txt for info.
Once the dependencies are satisfied:
sudo aptitude install subversion svn co http://google-docs-fs.googlecode.com/^Cn/trunk/ google-docs-fs
and install that.
Then "gmount /doc john.doe" will work without even needing sudo. Note that "/doc" has to be owned by your non-root account. Substitute your google docs account for "john.doe" (duh.)
mount | grep gFile gFile.py on /doc type fuse.gFile.py (rw,nosuid,nodev,user=babystrangeloop)