Why did I get an Xbox 360 service update e-mail?

Posted by Brendan on Friday, November 13, 2009 at 11:06 pm 

I just checked my gmail account and was surprised to see an e-mail, subject line: “Xbox LIVE – Service Update Information”
My question: Why did I get an XBox 360 service update e-mail? I have never had a X360, or and Xbox Live account… very curious.