Via 82cxxx
I've been hacking the via kernel sound driver over the last week. Now mmap() is working (QuakeX!) and the driver supports variable sized fragments and number of fragments. The problems with RealPlayer should also be fixed. Jeff Garzik should submit these changes to be included in the 2.4.1 kernel. The alsa driver also needs some (minor) fixing but free time is rather limited...

Emu10k1
The emu10k1 driver has been pretty much in a stand still. My computer is still in the US which takes all the fun of working on a driver you don't have the hardware for.