Some time ago I got AT91SAM9263-EK board which was given by Atmel company. It is not first developer board which I use but first which I own ;)
Currently I run 2.6.28 kernel on it and have a problem with audio as it works only via OSS emulation and OOPS when ALSA is used directly. I tried 2.6.20 and 2.6.29-rc2 but problem was the same.
Today I moved from nfsroot to root on NAND flash. But this time I used UBIFS instead of JFFS2 (which I used in past on devices). Kernel is still fetched from TFTP server but I will change that later (there is a space on flash still). I have to admit that my old setup (tftp kernel + nfsroot) is really handy for rapid development — no need to copy anything to device, no need to remember about syncing when RESET key is pressed etc.
Next plans for board? Not defined yet but I know that I will use it for quite long time as main development platform.