I'm sure many other people have reviewed the Lemote Yeelong 8089 netbook. I picked up mine for a specific use-case and for the most part, it does a decent enough job satisfying that use case. However, unless you're at an RMS level of free software dogmatism, you would probably be better served by an x86-based netbook. I use it for hacking in C on the bus, especially when working on code that is meant to run on OpenBSD systems. It is quite slow, making it sometimes painful to do much more than gvim (which can take a second or longer to pull up on screen)
Mine is configured with 1G of RAM and a 160G hard drive (I haven't looked at changing out any of the stock hardware), and runs OpenBSD 5.0/mipsel. For the most part, the hardware runs very well. The major exception is the wireless card; when I tried using it on an open access point, it worked fine. It struggled, and typically failed, to connect to my WPA2'd access point. I had a USB ral0 wireless adaptor lying around, and I just use that when I need wireless