Which Kobo's can run Android / rooted linux?

I'm interested in the lighted models--Glo, Aura HD and Aura. Can they all be over-written with Android? I understand the new Aura doesn't have an internal SD-card.

Also, which one's can operate as a Linux tablet using the technique developed recently?

In addition, is the light functional for each device / OS combination?

Thanks up front.