Shibbys builds are still going strong (though two months since last update).

http://tomato.groov.pl

I used Tomato (various flavours, including this one) for a long time until finally succumbing to OpenWRT.

The web interface is lacking compared to Tomato, but in return you get a recent LTS kernel built with the latest GNU toolchain and a superb package manager + collection.

OpenWRTs CLI config system is very slick, the web interface just doesn't yet hook into all possible settings (which may vary between devices).