I ordered an openrd-client from globalscale and it arrived within a few days. It's the same SoC (Kirkwood) as the Sheevaplug, but more (perhaps all) of the connectors are made available, plus vga output for $250. Looking at mine, I see connectors for 7 usb 2 ports, 2 Gb ethernets, esata, SMbus, system debug, sd card, rs485, rs232, audio speaker & mic, and vga output. So far, I have both ethernet ports working. The VGA is Volari Z11, which is apparently undocumented except for Linux drivers.
Note that the Kirkwood SoC does not include hardware floating-point, so the kernel emulates floating-point instructions, which is slow, though acceptable for uses such as awk.
