Have my Power Mac on it's way to give 3.0 a try :-) Just wish they supported more video cards, there are some cheaper options (and faster) than 9000/9100/9200/9250 ;-)
I had a friend re-flash my Radeon 8500 PC video card to work in my G4 PowerMac, so I can use it when running MorphOS2.7. I think it might be the fastest video card that is fully supported by MorphOS with 3D drivers.
It is a 128mb VRAM video card, but unfortunately the Mac bios for it only allows 64mb of that VRAM to be seen when converted and used in a Mac. Since I never ran into a low video RAM problem with my current Radeon 9000Pro, which only has 64mb of VRAM, I am not expecting any problems with the Radeon 8500 with only half of its 128mb of VRAM recognized.
I highly recommend the Radeon 8500 (but not the 8500LE) for use in a MorphOS G4 PowerMac. Soon we expect more drivers for other newer and faster (or as fast) video cards than the 8500, but until they are finished, you can't go wrong with the Radeon 8500. If you can find one on eBay, or Craig's List at a low price, buy it.
As for the question about when will MorphOS3.0 be released, I can only repeat what I previously wrote. Writing drivers for undocumented hardware is not an easy task. I would guess that there is one or more part of MorphOS3.0 for the G4 PowerBook that is giving the MorphOS Dev. Team problems, or they are just not satisfied with some parts that have been worked on, but are not really finished.
No telling what is holding up the release, but I know from my own experience with prior releases of MorphOS, that the standard of quality that the MorphOS Dev. Team holds themselves to on each new release, is very high, so I am sure that they don't want to lower that standard for this very important milestone in the development of MorphOS, by releasing a version of MorphOS3.0 that is any less in quality than their prior releases.
I have confidence that there is a good reason for the delay and I agree with the MorphOS Dev. Team's prior (and apparently current) practice of not releasing versions of MorphOS that are not ready for the general public. I can confirm from my use of the beta version that was given to me last Oct. for the AmiWest Show, that it was not yet ready for release at that time, but I won't comment on what parts still needed work.
I can only repeat my earlier advice of patience. The MorphOS Dev. Team has an excellent track record for knowing when their work is ready for a release, so trust them to know when 3.0 is ready for release.