It was announced earlier today that the ARB is currently revising the specifications to correct several identified issues. The official announcement is available at the OpenGL forums.
OpenGL 3.0 will be a complete redesign of the 20 year old OpenGL API, something sorely needed if I may add. It will be supported on R300 (Radeon 9500+)/NV30 (Geforce 5200+) and newer hardware, at least once the IHV's provide the necessary drivers. The Pipeline Newsletters contain more information on the upcoming API - a recommended read by all OpenGL developers.