Is there any way to put Gentoo on this. What I am thinking is this:
I have a USB HDD that I would use as the OS HDD (provided that this
system will boot from the USB port). That way I wouldn't necessarily
need to use an embedded system, but could just use a regular gentoo
install. Will this work?

If so what CFLAGS would be suitable for this chip?


There are some experimental Gentoo on the HP hx4700 PDA, perhaps that
would be a good way to start?