Re: Crazy shit
Buying a company saves them the embarrassment of writing an android app.
MS need to get an exchange client out there before everyone moves to Google or plain imaps.
If you've got android but no exchange client, you won't be using Exchange with that phone so you might start looking elsewhere for a mail server - maybe just move the whole lot to Google.
You could enable imap on Exchange, but that would be embarrassing for MS' proprietary protocols and people still might just switch mail servers. Gotta build that "ecosystem."
Just buying the market... though a slight withering of support for other systems wouldn't be a surprise.