First IOS Build with Unity3d
1.1.Buy apple developer licence.
1.2.You need to be apple developer certificate = > http://www.youtube.com/watch?v=HlRI30F6-Ek
1.3.Plug your test device on Imac.
1.4.You need to add your test device(Iphone,Ipad) other way provisioning on an IOS Device => http://www.youtube.com/watch?v=mX4v9A2bpjs
1.5.Download xcode and setup.
1.6.Start unity and File ->click build and run
First Build is Ready.