Google Docs supports PDF upload, viewing and sharing:Sharing PDFs through this mechanism is very helpful, I'll definitely make use of this.
...Google Docs now allows you to upload PDF files to store them online. You can view uploaded PDFs right in your browser, and determine who else should have access...
The news does, however, remind me that it's been two years since I expected an imminent general file serving function for Google Apps.
Clearly, there's a reason they don't want to support other file types. Copyright violation? Performance? What?