I've been seeking out feeds to sync to my front page, in order to keep the front page interesting, updated, and sync'd. One such interesting feed I tried was my Xbox 360 gamertag. The idea was to update every time I had a new game. Instead, it's been spamming every day I play, which is pretty damn annoying. I've left it on, with the theory that I'd locate a better feed or fix it somehow. Well, I'm declaring todo list bankruptcy on that one. Fixing it may take quite a while, and the value is just too low to bother with.
Maybe once I finish my home inventory and valuation project I'll tweak it to list new game purchases in XML. Until then, you'll just have to ask or check Microsoft's web site.