Does the Unity iPhone support the same networking (Multiplayer Games)
like the normal Unity3d
Not at the time.
Right now you have only .NET sockets.
Also keep in mind that networking is an iPhone Advanced feature
Will it ever… like in version 1.1 or something… Or if i want to support the same network play for my full game/iphone versions… i should use a third party solution like smartfox (its pretty expensive… im just a guy trying to get into game programming, with networking support for iphones… that means i gotta have Pro version of Unity3d/Iphone that 3,000 i am trying to scratch together now to pay for license when my demo runs out in 2 weeks… $$$)
It was mentioned to happen, yes.
But I don’t think there was a version mentioend.
As for smartfox: its not udp but tcp so action oriented games won’t work.
Also it still requires iPhone Advanced to use it, so its not like you can replace the need to buy Advanced through it.
I have RakNet compiled and running in an iPhone build. It looks like it’s too much work for my liking, but it’s definitely an option.
hehe 
though you need again iphone advanced to expose the functions directly to scripting, otherwise only the “slow pipe” is available.
Will it ever? Possibly. In 1.1? No way. We’d like to roll in as many base Unity features as possible but this one just isn’t on the plan for the 1.1 time frame. For now if you want multiplayer then you have to work with the WWW class and/or .NET sockets for that.