Hiya,
I wouldn't put any faith in those dates listed, unless they come from Sir Tech Canada. check out of the forums off of their site, Ian and Linda Currie have posted stating that there is still no official release date. Their word is cannon, and everything else is just speculation.
I have a feeling it will be later this year, but I think its going to be just about the best RPG ever seen, so its well worth the wait!
Scronan