Heller specifically talked about carry outside the home, although it wasn't the subject of the case so a ruling on that aspect was not made. The findings pretty much say some form of public carry must be provided for either open or concealed if not both.
There's no real downside to this, states can't be more restrictive than the Feds, the 48 states that are currently better can stay status quo or improve, the two without carry will be SOL.
Note also that overly restrictive discretionary laws are vulnerable to equal protection charges, as California's is currently being attacked, and will be subject tot eh dicta in Heller after teh expected win on Mcdonald. So even the "bad" carry states won't be getting worse, if strict scrutiny is applied to the Second then discretionary regimes are gone based on the extant evidence.
Here's hoping NRA grows up enough to admit to being a supporter rather than a lead. Doing so would earn them a lot of goodwill from the members int eh know and wouldn't cost them a dime in donations. But no, they have to pretend they are always out front.
Whiny little girls the lot of 'em.