Game Banshee have a new interview with Irrational's Nate Wells!

...we’re polishing-off the PC version and getting the non-english versions of the game ready to go. It’s a hectic time, but all indications are that we are right on track for August.

weapons and plasmids are accessed on-the-fly from rotary selection interfaces (in the 360 version, the pc version has a custom interface)