Isn't Gentoo that cheap pkgsrc knock-off? (I'm running a NetBSD system at home, so I have a license to be a UNIX elitist now. )
While I like the notion of optimizing builds to our hardware, instead of Debian's maximum compatibility, I do wonder how well the self-hosting build method works in practice; pkgsrc builds of Xorg and such take long enough on my 1760 MHz Athlon to be annoying, so I'd think it would be close to unworkable on the N800.
While it is self-hosting, is there an optional way to offload compilation to another system with a cross-compiler, or are hours of installation and updates just something to put up with in exchange for optimization and self-hosting? (And how long does the initial rebuild take, anyway?)