It seems like Unity3D 4.1 isn't including some of the files it used to in the iOS builds. Everyplay is creating compile errors because "iPhone_GlesSupport.h" can't be found. Looks like this was a standard file in Unity's XCode projects before 4.1?
Yup, it was a standard file in Unity 3.5 and 4.0 series.
4.1 release brought some major changes to graphics pipeline and we'll be releasing an update to the SDK and Unity plugin ASAP.