Grow up...

Get over yourself.

The issue is not about Google or Microsoft.

Chris DiBona is questioning on Microsoft motives. Is the license Open Source Friendly? No.

Read the MS-PL license.

"(B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your patent license from such contributor to the software ends automatically."

Why would I become a contributor to a project where anybody can just claim anything out-from-the-sky and steal my hardwork?

Also, better understand the terms of GPLv3 and below. GPL only requires you to give the sourcecode if you "Distribute the Software". Google is clearly not distributing software but service.

As if, Microsoft is not in the same boat in providing SaaS. And who know how much opensource is being used behind closed doors. Is Microsoft not a partner of Yahoo? as well as, Hotmail?