Anybody using the test 2.6.0 kernels? If so, what are your impressions?

I'm currently playing with test-2 as I havn't had time to compile the later ones. Its very, very fast and feels quite stable; certainly no interesting problems such as trying to mount the partitions in a different format which was what occured with some of the later versions of 2.5. There are however quite a few rough spots, wifi pcmcia card support appears broken and it wont recognise that theres an optical mouse attached to the USB port. I havnt been allowed to run it on one of our production servers yet so I cant say what the improvements are their, but I think we'll be in for a treat with the first 2.6 release. Regards, Ben