Google is stealing away Microsoft’s future corporate customers

Mail is a strange case.

If you are a tiny .com, mail deliverability is a big problem. I switched to gmail because I couldn't post to W3C mailing lists from my own .com. Mails from gmail are less likely to end up in the trash than from nobody.com and if you are trying to sell something you can't have stuff get trashed.

Fortune 500 companies have the resources to fight deliverability issues, also there are a lot of biz people who handle insane volumes of email who swear by Outlook.

As for other stuff, Google docs is a joke, it is so hard to maintain and add features to software that revolve around async communication. Whatever you think about Win 8, Office 365 kicks ass. (The async comm problem is so bad that it is easier to port Office to Android than Win 8)