I don't know who this is or how they got my cell number, but I got a text from them on March 19, 2012 at 10:25 EST.

The text said:

You've been Chosen to Win a $1,000 Walmart Gift Card! But only the 1st 1,000 users that enter code 7777 at http://1000dollars.mobi will Receive it!

I did not go to the website because I am sure it is some kind of scam.