So, I decided to fetch and build a fresh trunk for my router and while I was waiting and looking around the source tree to see what's new (as one does) noticed this (changelog).

There are also a few more details here.

Apparently it comes with an up-to-date kernel (2.6.35.4) including KEXEC support!

This target isn't included in the snapshot builds and my own build box is going to be busy for a while, but in the meantime has anyone else tried it?