I'm a bit confused by the concept. Why would I want my documents to sync to gDocs – when I already have gDocs that handles all the syncing? Sell me!
* I don't even worry about offline access anymore, since I'm basically never offline.
* I can share a document in real-time over gDocs.
* The only reason I have now to keep a document out of gDocs is formatting issues. Since these documents are synced to gDocs, I'll likely loose all the formatting.
I will be glad to answer any questions.