Exactly, I also see the game as an intermediary to ME3. I love it however, the missions are well-designed and have some interesting twists.
Not only will your decisions from ME2 matter, but also certain ones made in ME1. For instance, if you romanced Ashley/Liara or Kaidan/Liara in the first game and cheated on them with Miranda/Jack/Tali(/Kelly) or Jacob/Garrus/Thane(/Kelly) in the second, it will have consequences for the third.
I am in eager anticipation, but until then I've got to play both games a couple more times to set the storylines straight :P
i agree. ME2 does seem like an intermediary to ME3. but its well designed and definitely gets u very involved. it just blew me away. it even made me play ME1..again! i can hardly wait for Jan 2011