So, Microsoft puts out its hand and
offers help with porting open-source software, to make it run best on the Windows platform. How mean. Understandable from marketing and business point of view, but mean anyway (and hey, that's my opinion!).
I have a proposal then, a simple one. Since Windows users are already used to trial versions, time-limited, feature-limited, shareware and other pieces of software which they constantly have to "unlock" by using codes found on the net (or keygens), so let it be!
Let's give Windows users what they already know:
1. Limited editions of Free and Open-Source Software for Windows.
2. Full-featured versions, including source code, for all other Operating Systems.So if someone from Microsoft (or other third-party company) wants to keep working on a port for Windows, let it be. Let them even capitalize on the effort! This way THEY will have to keep up with the upstream. Or if they create substantial improvements, they will HAVE TO release their modified source code (that's the beauty of the GPL license!)
Your offer was insincere, so you won't get what you asked for.
Have it your way, Microsoft!