Considering his past, not many teams will be interested in picking him up. He can't play QB at the NFL level, so he'll have to learn another position. Rookie WR are not usually big factors because it takes a year or two for them to understand the complexity of an NFL passing attack and to learn how to beat great defensive backs. There's no way he's going to be a factor in 2006 at WR without ever having played the position.
And there's no way he's going to beat out a Cliff Russell, a former 3rd pick with good size and 4.42 speed. Russell is entering his 5th NFL season, and his 2nd with the Dolphins. He's practiced extensively against NFL DBs, and he knows our offense after spending 9 games on our 2005 roster. And in 2004, he was the primary kick returner for the Bengals. He has the experience to be a contributor in 2006. Vick does not.