"Apple may soon face antitrust pressure from either the Federal Trade Commission or the Department of Justice over its decision to block Flash and other cross-platform development tools from the App Store, a move that Apple says is best for consumers."
Feds Eye Apple for Antitrust Probe - PCWorld
So I guess the EU (E) versions were going to have no browser, but the NA versions were? I was just reading something about this earlier, and it seems things may have changed already.
EDIT: Second source that doesn't require registration here.