I don't see anything special with this guy, his best win was against a C level opponent and his lack of experience will show in this fight. Chagaev should win by stoppage.
And now he's even more of a hype job. Sparking the chinless wonder doesn't mean much except that he has a big punch. Untill he can prove otherwise, I see no reason to like him more than I did before the Khan fight. He's still the kid who struggled against a late replacement on FNF.
Hype can't knock a guy out, this guy has to have SOME power... he's fought a fair amount of competition that is levels above the normal 'bum' or 'club fighter', and has 20 KO's in 26 fights.