"As predicted, the open source community has come up with a way to convert VxWorks-based LinkSys wireless WRT54G routers to Linux. The process does not require hardware hacking, and installs a recent version of 'DD-WRT micro.'
"A version of Linux that supports the VxWorks-based 'series 5' WRT54G has been available since April, when the DD-WRT project created its 'micro' edition, with a 1.7MB footprint. However, the firmware could only be installed on routers modified to expose their JTAG ports..."