Received this message about winning ipod as well & to enter a code number going to a web site.  Interesting that 1-307-213-0609 also told me I'd won an ipod with a different website address but using the same code number to enter.  I totally ignored both.  

Been getting calls from some medical collection agency as well asking for someone other than me - this has been going on for ages.  I called their number back at the beginning of these and left message that I was not the person they were lookiing for but it's a continual weekly calling still - probably a computer as they don't acknowledge your answer.

Wonder if these are connected & trying to get you to respond with your e-mail address to bother you further with whatever.