Tegra2

Tegra2 is the dual-core Cortex-A9+FPU based part from nVidia

http://tegradeveloper.nvidia.com/tegra/

Forums: http://tegradeveloper.nvidia.com/tegra/forum

Installing linux: There is a temporary workaround to install linux until nVidia launch their official LDK http://tegradeveloper.nvidia.com/tegra/forum/workaround-run-ubuntu-now

Binary kernel and config file: Note patch contains some performance improvements to L2 [build instructions and source code detailed in forum posting]

Fastboot utility (prebuilt for x86 Linux host machine - tested on Debian Lenny and Ubuntu Karmic) [build instructions and source code detailed in forum posting]