@subdane, yes, the games are sharing team members.
BioShock is interesting the first time through, mostly because of the story line. However, it's quite possible to explore every nook and cranny of the game world on your first go regardless of what "powers" you choose, so there's minimal replay value, and the "difficulty" is near non-existent (you're effectively immortal, so fighting the so-called "Big Daddies" with a toothpick and a screwdriver is as valid a tactic as any).
My take is without action points it will be a completely different game. Also I find with all the similar games even the small changes make a huge effect, and it seems like a million little details will change here.
That's not necessarily bad except most of the clones of X-Com and JA seem frankly terrible to me. These changes make a ton of difference, and usually it's bad unless you are very careful. I'd come out and say this is going to be awful but the saving grace is maybe sid meier being around to give advice might save it.