Interesting, I'd completely forgotten about Blonsky from the more recent Hulk movie. Is there any dialogue or visual portrayal that would discount it from it being related to Cap's 1940s Super Soldier program? Or conversely, is there any sign of intentional clues that reinforce the connection?
The following is already known to be true, so I'm just stating the obvious, but since Tony Stark appears in the after-credits clip where he meets General Ross, we know that it's in the same continuity, since Tony's father Howard is involved in the Super Soldier program. Thus, it's the same U.S. government and U.S. Army that we see in the Captain America movie and the Incredible Hulk movie, though separated by ~60 years.
However, it's still possible that the two military human performance enhancement programs may be separate and unrelated, and I don't have the Hulk movie on hand, hence my question above.
Otherwise, it gives us a good picture of what movie Captain America may be capable of (as Streetad has already pointed out), and I would in fact expect Cap to be superior since Erskine performed the complete procedure on him including the "vita-ray" bombardment. And also because Cap is a swell guy, to begin with
"..history has shown the best defense against heavy cavalry are pikemen, so aircraft should mount lances on their noses and fly in tight squares to fend off bombers". - RedImperator
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"It would just be Unicron with pew pew instead of nom nom". - Vendetta, explaining his justified disinterest in the idea of the movie Allspark affecting the Death Star