Saw it last night. Was thoroughly impressed.

Action scenes and special effects were neat-o. I wasn't too put off by the unresolved plot... I went in there expecting that it wouldn't really make sense until the third one. Empire is shite without Jedi.

As we left the theatre, the Matrix-within-a-Matrix thing was mentioned a few times. The theory being that Zion is just another level of the program, there to keep the humans in line. It'd explain a couple of things.