I got the email as well, and it most certainly read like you'd get a free iPad2 for adding a new line and a data plan with a 2-year contract.  Seeing as this was for 2 years of both an additional line AND a data plan, and the "limited time offer" in the email, it sounded like we were getting a subsidized iPad2.  With the new iPad3 coming out very soon, it made sense that AT&T and Apple were trying to move out some excess inventory of the iPad2 3G in anticipation of the new model.  I went so far as to click through and then attempt to find the "deal".  I couldn't find it and gave up, but I mentioned that I thought there was such a deal from AT&T to other people.  Yes, the email was worded that poorly.  Feel free to contact me via PM.  I'd love to discuss this further if you'd like.

-Jim