I have to agree with Chris.Stuart. I don't see any company putting trade secrets, data or code processes considered part of their strategic advantage into the cloud. Do you really want the Google staff to have access to your latest web idea - including the code?

And lets face it, web only tools only work for simple stuff. Like Facebook. AutoCAD via web only - I don't think so. The Google office stuff is not good. Zoho is better if you need web office tools.

As for search, Google is maybe a little better, but they have more mind share than real advantage. I tend to use them all, Google does not always get me what I want.