Cool, I'll get one right away
There are very few third party drivers for any hardware yet. Apple has been very cautious about making sure that the foundation for the hardware manufacturers to write their drivers is very well thought out and tested.
I can't speak for the third parties, but their hesitance to develop is probably their own caution to make sure that Apple has worked out the kinks with this foundation.
Since driver's are very difficult to write and can completely hose your machine if either apple or the driver writer's screw up, I'm glad that everyone involved is taking the time to do it right.
But it is frustrating that it is taking so long to see the fruits of their labors.