Beating Microsoft is beside the point. They just put that in the headlines so they'll get attention. Any real conflict with MS will be rather far in the future. Right now, the only question that needs asking is whether or not any of the new crop of web applications will do us, the users, any good.
Anyway; here's an ExtremeTech review of a web application productivity suite. Some of you might want to check it out. It's well written and decently informative.