AEROS is a hybrid distribution of AROS and Linux (in the moment debian 6.0 for X86 and 7.0 for ARM is used) available for ARM and x86 systems.
I posted recently about this operating system. The bad news was that only allows registered users to download (I think it requires registered user make a small donation).
The good is that it has been released beta 4 to the public, and now we can install applications through the application lx included, something we could not to do before.
The new beta is now available as ARMhf like Raspbian or Debian Wheezy.
Who is encouraged to try? After watching the video, we see that the OS goes to the right way.