Jul 17
The authors of Beginning iPhone Development have released an updated eBook that covers the 3.0 operating system and related SDK. As a previous owner I was allowed to buy the eBook for half off.
You can find the eBook here:
http://apress.com/book/view/1430224592
One of the authors — Jeff LaMarche – has started on online tutorial in his blog for OpenGL ES programming. You can find the Table of Contents here:
http://iphonedevelopment.blogspot.com/2009/05/opengl-es-from-ground-up-table-of.html