You can use tizen, Ubuntu phone, n900 and others who are more hackable and open.
You can run as well chrooted linux if not real dualboot on android. Linux is Linux, which is OS, but phone is a tool and not a game to compile kernel. I do use myself gentoo and like freedom and the ability to compile own kernel and have own settings and env, but it doesn't mean I would prefer computer I can compile but can't use it as computer.