Hmm, maybe.
My Asus RT-N16 has 128MB RAM and 480MHz processor. It currently acts as my media server (has an old 320GB laptop HDD attached) and has no problem with that at all. They're pretty nifty devices
I've been following the dd-wrt and open-wrt for years now. Though, as of late I have not kept up on it much. It has gotten a LOT closer to allowing these newer routers to function as a capable 'PC'.
Last time I read anything there was just coming out USB support for printers and very limited b-linux functionality. The specs on your's are quite impressive and being able to hook a 320GB HDD is awesome as well. Do you know if it has any addressing limitations for the USB? I.E., how many USB devices can it support?
The only catch I see, which in no way detracts from the coolness, geek and flexibility factors. Is that if you have the computer to get the router all setup from then you already have a computer to just plug FPGA's into. Though there are obvious benefits in having a super small, efficient box that can be placed in a corner some place with the FPGA's plugged in and pretty much forget about it. Slap a small cron job on their to report the devices status every so often and one to restart them under certain flags and one would be all set.
Do please keep us informed if you work on getting FPGA(s) running on yours, m8.
Cheers
P.S. BFL, any public updates on the status of the current modifications and first production units?