Microsoft Office 2010 will include the ability to save documents to and open documents from a repository on the Web. Further, you’ll be able to actually open the documents in your browser and perform minor edits. Until that functionality is enabled, though, you have another option to do the same thing (actually, since we have yet to actually see the collaboration and cloud storage features in Office 2010 – they have not yet been enabled in the beta – the alternative might even be better than what’s coming).
OffiSync allows you to save your documents to and open documents from a GoogleDocs account. You can associate multiple Google accounts with your Office installation, easily switching back and forth between those accounts. With OffiSync, you can do all of the following: