Texturing/Shading Question

So I’ve begun modeling and UVing the art assets of an iPhone game that’s currently in production. My main question is (and this may seem rather elementary to those of you who currently use the engine, but . . .): Can the iPhone render Alpha Maps and Normal Maps? This will, obviously, have a huge impact on the poly count and lighting of the art assets I’m currently working on.

Thanks for any help,
Rob –

Software: Maya 2008, Photoshop, Zbrush, Unity.

Alpha - Yes
Normal - No

Normal yes, on static models

But don’t expect too much of a gain from it as normal requires light and light + normal cost enough performance to be considered useless.

Normal maps work on the iPhone? What shader do you use for normal maps?

None.
You need to use the Dot3 Combiner

Ok. I just found a thread that talks about normal maps and has an example project:

http://forum.unity3d.com/viewtopic.php?p=115373

Thanks for your help, guys!