Now I know that tgc are working on agk and have done a great job! But There are two things, that I think would make agk better. One thing is 3d graphics, I know there is dbpro, but i do not think that dbpro runs on mobile platforms. The second thing is the capability of making third party commands. But I still have to say that agk is the best mobile IDE out there, in my opinion.
P.s. I use udk for my 3d graphics for the iPhone, I just would rather want to work with agk instead of udk.