It looks that mentioned by my in one of previous posts problem with updating of existing documents in Google Docs wasn't caused by my code :-)
Simply, for now Google Docs API doesn't support it yet.
New issue item was open in tracker for support this http://code.google.com/p/gdata-issues/issues/detail?id=277.
Blah... ugly API ;-)
New issue to Google Docs API to vote for :-)
Just testing my new Android app for blogging on Blogger :-)
OOo2GD 2.4.0 - folders and HTTPS ;-)
My dream - to create JVM in Java :-)