Walmart makes boo boo by showing HTC Hero instead of HTC EVO Design 4G in flyer6
The HTC Hero variant that landed on Sprint in October 2009 introduced Sense UI to the U.S. and had a elongated look with a trackball on the bottom of the phone. Of course, the HTC EVO Design 4G does not have the trackball and is currently available from Sprint for $99.99 with a 2-year contract. Buying the phone from Walmart will save you $1.11 with the same signed pact. Just make sure that they give you the HTC EVO Design 4G, not the HTC Hero.
source: Walmart via SprintUsersForum