develop games on the iPhone, which a third party or Game Engine SDK available

(1)
What 2D Engine can be used (there really game on the Apple Store, use this Engine)(2) What are 3D Engine can be used (there really game on the Apple Store, use this Engine)
(3) What are 2D & 3D are supported (the game is really on the Apple Store, use this Engine)

Considerations:

(1) Prices do not consider
(2) whether there Editor with Quality is very important
(3) 3D Engine What 3D Authoring Tool to consider (such as 3DSMAX, Maya or Blender)
(4) the size of data arising out of the game, to consider
(5) capacity is not easy to transplant into the game Online Game to consider.

Currently seen a few Engine

(1) Unity
(2) SIO2
(3) iTorque
(4) cocos2d

Please give some advice Advanced
Reply:
Only used Cocos2D ....
Reply:
Is planning to develop Iphone, keep abreast of learning.
Reply:
The landlord can ask these questions, that has been completely fascinated!

Reply:
iPhone Yeah good high development costs. .
I waited only obscenity. . .