I have used it to upload a lot of photos to my picassa page
http://picasaweb.google.com/james.w.stephens <didnt work will have to see why
Here is the link to the google blog on the subject:
this is an example of the use of the command after the google python bit is loaded.
google picasa create --title "My album" ~/Photos/vacation/*.jpg
Much less painful than the google picassa web interface. Unfortunately, the picassa application seems to take off and try to find all of your pictures when you start it, and that is in the many GB and several hundred thousands of photos.
installing googlecl load
also to get this to work gdata is required as well as
of course python 2.5 or later is required to get the xml parser and the basic language support.