On
http://code.google.com/apis/gdata/overview.html they describe the Google Data API's. From what I read here, I think it should be doable. If I get a spare month (ha ha) I will mess around with it.
And what about pdf's? Is there any (web) service that allows you to send a pdf and get a png back, for display in Zimbra?
What I'm looking for is "the future", where you can do everything with only a browser (possibly a fat one, with ajax), without having anything else installed locally.
regards Bart.