Actually I won the same contest and I received the same Solo instead of Pro. The ePrize letter included with the package says that a Slinbox Pro is enclosed and when I went back to the original email notifying me I won I found a working link
http://image.eprizemail.com/lib/feff1072746d04/d/1/Mccann%20NameGame%20Rules-2.pdf
for the rule and it clearly states that "ONE HUNDRED FORTY-FIVE (145) SECOND PRIZES: Slingbox Pro. ARV: $179.99. The ARV is subject to price fluctuations in the consumer marketplace based on, among other things, any gap in time between the date the ARV is estimated for purposes of these Official Rules and the date the prize is awarded or redeemed."
They also have the right to substitute a similar prize of equal or lesser value if the original prize is unavailable. I emailed ePrize with questions about receiving the Solo vs. Pro. They will probably simply tell me that the Pro version is unavailable and that I get the solo version instead.
Thanks
Time wounds all heels. Groucho Marx