Microsoft Points leaves the XBOX – joins Office Live?

My Microsoft Office Live account was upgraded over the last couple of days.  I got this email from MS today telling me how many “points” I had.  This appears to be tied to my XBOX Live account, but I can’t be certain.  The link to spend points goes to  I didn’t sign up.

I did a blog search though for Microsoft Points, and I can’t find anything that ties to the fact that points are now tied to Office Live accounts. Does anyone have any more information?