I guess they are shifting from MIPSel to ARM... wow
Anyway, there's a project about hacking iPhone and iPod touch and installing android on them, but it really isn't for every day use. It does work though... I doubt there will be something for the airport though.
P.S. ASUS is O.K. for the price, Linksys is better
My RTN-16 can't even run at stock speed reliably, i had to downclock it to 400 MHz, My WRT-610n (v2) (converted to E3000) overclocks to 532 MHz)