I have set up a daily build of latest 2.6.1:
https://code.launchpad.net/~prof7bit/+archive/fpc-2.6-latest ppa:prof7bit/fpc-2.6-latest
(should update automatically from now on without manual intervention)

and also (because I needed it once for bootstrapping and will also need it for lazarus-1.0.0) two builds of fpc-2.6.0 (for Precise only) https://launchpad.net/~prof7bit/+archive/fpc-2.6.0 ppa:prof7bit/fpc-2.6.0

I have not used the official debian packaging files, instead I have made a much simpler packaging (similar to the ones produced by the build scripts in lazarus/tools/install) they consist of only two packages: fpc and fpc-source and replace all the fpc-* and fp-* from the official debian/ubuntu packages.

Please test.

I am planning to do the same with lazarus 1.0.0 and 1.0.x during the next few days