ChainsawAsh said:
Apparently, T1 and T2 are 100% canon with "Salvation," but T3's events, while they happened, won't be followed as strictly (i.e. some elements may be retconned or just not mentioned).

Nice. I like how film makers have reached this point of no shame, where they can admit a movie was pure crap and simply wait a few years and remake it again, like the other Hulk movie and T-3. I suppose that is why they are calling this Terminator Salvation instead of Terminator 4, so we can put it on our DVD/Blu-ray shelves displayed right next to the first two without skipping a number.