Dude, love your signature. Seriously, made me smile that included those quotes there, but I think you meant to put 'there' instead of 'they' in there. Unless you copied and pasted my words, in which case my bad.
Yes. It will be free as well till like April 2013 or 2014. I forget exactly when. Supposedly, it will only expand on the given ending though. Not sure how I feel about that though. I kind of wanted this theory that has been lurking around the Internet to be true lol
Most people disliked the ending because of how inconsistent it was with a number of things. Uninformative is a good way to put it. My main problem is with the relative lack of closure I was given with the ending, considering the number of decisions I made throughout the series. I could go on for hours, but I rather not spoil for anyone else who happens to have not played the game (but intend to) and happen to visit your profile xD.
Just finished ME3, btw. I don't get why everyone was upset with the ending. I thought it was rather good, if only a bit uninformative. That may actually be the reason people are upset...right? Either way, pretty great game.