The first of five, for those of you wondering how different this game is from Im@s2.
http://www.youtube.com/watch?v=DaxnNKcURx03:12 - Under the unit stats there, there are three slots. Memory Drive, Burst Charge, and Burst Counter. You can also see an idol has skill points, an Exp. bar, and what looks like a selectable Burst Skill? I also see a Lesson Boost slot, so I'm wondering if lessons are just temporary powerups or something.
3:45 - Hope you liked auditions in the original game, or failing that, hope you didn't do that many of them. I... didn't think you could get your multiplier to 165% in the original game?
6:10 - Looks like each idol has their own rank, level, and fans? Also, wondering if you can change your idol's stats on level up, or if that's predetermined for each idol.
Also, apparently idols can learn skills or something. Anyone who picks up a copy of this month's Famitsu will know what's up.