Hardware Reviews WRT54G
Linksys WRT54G
v1.0 125Mhz MIPS
v2.0 200Mhz MIPS
4MB flash
16MB RAM

see:

[Linksys Corporate Page]
[EWRT]
[Wi-Fi Box]
[SVEAsoft]
[OpenWRT]
[Slashdot Hacking Linksys WRT54G page]

see also: WRT54GS