2.6.3 Kernel on IBM T23
Well, this is first pass, I'll record it anyway.
APM doesn't work – suspend does strange things.
alsasound in the kernel works well – used mm-sources, and everything went smoothly. I don't remember any major issues.
Notes on APM with 2.6 kernel:
T23 suspend – 2.6.0 final
T23 suspend – 2.6.0 final