...Dawnguard is even coming out for PC and PS3? They've always said that it's exclusive for the Xbox 360, they've never said "timed exclusive". At E3 when Todd was asked about the other platforms, he could've said something like "later", but no, he said "no idea" which made me think that he was just scared of the [censored]storm that would have occured if he had revealed that it'a a 360 exclusive.
And please don't tell me to go to the Dawnguaed subforum, I don't want to see any spoilers.
Confirmed many times, in E3 video interviews as well as on the Bethblog on the very first day Dawnguard was announced.
It's only a timed exclusive window, definitely coming to PS3 and PC later.