Google bought Jotspot because of its natural fit. Jotspot helps remind you of jobs to be done. Lets you maintain a wiki. Builds out Google's suite of work applications that sit on the web but enable PC activity. Microsoft are building out their web applications from the desktop. Surely their has to be a collision? Maybe not.
Perhaps there are two markets sitting side by side. Microsoft corporate. Subscription or purchase. Google everyone else. Paid by advertising.