I'm using Unity3d engine and I have iOS commercial licence. A couple of days ago Unity team has released free version for iOS and Android, so obviously I want to reach many platforms as possible and will release for Android too ! Probably including Ouya and consoles like that.
Beside of licences, now I'm using also new 4.x branch of Unity, previously I had 3.x, which required payment for upgrade to new iOS, so I sticked to 3.x.
Now I'm really excited about 4.x, they make a lot of good job, especially with new animation system, lucky day, because I scheduled work on animation very soon, and that new system saved a lot of work for me already I can delete from todo "find, integrate or make root movement system" because now it works perfectly.
Meanwhile I'm still polishing control system, I have something cool and usable already, so I'll make a summary soon.