Got my TonidoPlug2 this weekend. Figured I kick the tires of the Tonido software...  initially I am not overly impressed. Still playing with the hardware, but figured I'd post that the 
http://archlinuxarm.org/os/ArchLinuxARM ... est.tar.gz does not work on this hardware. Just causes the status led to blink red.
The plug does have access to a 4 pin serial, I just have to make the wire. Once I do that, I can probably report on where it is barfing on boot up.
Until then here is some info, if curious:
$this->bbcode_second_pass_code('', '
# cat /proc/cpuinfo
Processor       : Feroceon 88FR131 rev 1 (v5l)
BogoMIPS        : 794.62
Features        : swp half thumb fastmult edsp
CPU implementer : 0x56
CPU architecture: 5TE
CPU variant     : 0x2
CPU part        : 0x131
CPU revision    : 1
Hardware        : Feroceon-KW
Revision        : 0000
Serial          : 0000000000000000
# dmesg | more
Linux version 2.6.31.8-topkick1281p2-001-004-20101214 (andrew@localhost.localdomain) (gcc version 3.
4.4 (release) (CodeSourcery ARM 2005q3-2)) #3 Wed Jun 22 10:43:05 CST 2011
CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
CPU: VIVT data cache, VIVT instruction cache
Machine: Feroceon-KW
Kernel command line: console=ttyS0,115200;version=topkick1281p2-001-006-20101103 mtdparts=nand_mtd:0
x180000@0(u-boot),0x20000@0x180000(u-boot-env),0x600000@0x200000(uImage),0x1f800000@0x800000(rootfs)
 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs rootdelay=10
')