[Oxymoron238]

OP, your post is made of pure gold! I love it. I didn't even really hate Windows Phone 7, but after reading this post, I'm almost ready to guarantee that I'll buy it when it comes out.

And to add to all of your great points, I really believe XDA Developers and PPCGeeks will still be around after WP7S releases. That means we'll see TONS of upgrades with WP7S, regardless of whether the OS is open-source or not.

If Apple, as tyrannical as they are, can't lock down the iPhone, then Microsoft can't lock down WP7S. =)