One of the easiest ways of get an Archlinuxarm installation on iconnect is download lastest ARMvt5.tar package to a linux host, untar it into a ext2 filesystem and replace /boot/uImage and /lib/modules/* with uImage and modules downloaded from here: www.diogogomes.com
Then simply boot from usb on uboot's prompt...
PD: fw_setenv and fw_printenv works too, but you need to modify /etc/fw_env.config to match with iomega iconnect uboot size & offset.
If somebody wants a how-to I'll glad to write it!
Cheers...