Definately not many surprises in that for a community such as this. I guess if I were to take the time, and effort to go out and invent something as advanced as the Kinect, I might be a little salty if someone else came along, took it, tweaked it, and then used it in an attempt to make money off of it for themself. But simply taking a Kinect, tweaking it, and using it for any personal use you can think of, short of making money off of it, I can't see Microsoft having a problem with. They should just be happy that people are going to buy it in droves for personal uses. Who cares what projects they use it for.
And I'm with you (the OP), I feel as though I've bought my DX, I didn't lease it. That means I should have the freedom to tweak it however I see fit. And indeed I am, Motorola isn't going to send a SWAT team after me if they find out I have the thing rooted. But I have to give up my warrantee along the way. So the biggest issue that sticks in my crawl is these so called 'sponsors' of the phone that they weave into blur (Kindle, Madden 2011, Amazon, etc...) and don't let us remove of our own free will. Really, sponsors? Well now, if they're sponsoring this phone, then why did I pay for it?
That's a sponsors job. That's why Jimmie Johnson drives around with a big 'Lowes' sticker on his car... because they gave him a big, fat check to help pay for the car, not because he just LOVES shopping at Lowes.