April 24, 2008 12:00 AM PDT
iPhone SDK beta 4 released with OpenGL ES support, code signing
Apple has pushed out a fourth beta of the iPhone SDK to registered developers. Thew latest build includes two primary new features:
- OpenGL ES support: The iPhone emulator will now be able to render OpenGL ES in applications, matching the capabilities of the iPhone 2.0 software.
- Code signing enforced: iPhone applications will now need to contain a valid certificate (obtained from the restricted, $99, iPhone Developer program) in order to be loaded on actual devices. If a developer does not have a certificate, apps will still run in the simulator but not physical devices.
Feedback? info@iphoneatlas.com.

https://developer.apple.com/iphone/library/releasenotes/Miscellaneous/RN-iPhoneBetaAPIDiffs/index.html