Alternative BB-xM operating system options?

Ideally open-source. Does the panel have any suggestions beside FreeRTOS and possibly the TI offerings?

Many thanks

Jerry

Angstrom, ArchLinuxArm(ALARM), Ubuntu, Gentoo, Fedora, poky, or you can semi-easily make your own using the OE tree, that is all I could think of off the top of my head.