OSNews points to a Linux Devices article about SnapGear Embedded Linux, an embedded distro based on the 2.6 kernel. It is available for download, though you’ll have to build it for your taget architecture:
The following link is the latest snapshot source package that includes support for a wide variety of CPU architectures. It contains support for X86, M68k, ColdFire, ARM/XSCALE, Sparc, NEC v850 and Hitachi SuperH based target hardware. It also contains 2.0.39, 2.4.22 and 2.6.0-test5 Linux kernel sources, glibc-2.2.5, uC-libc, newer uClibc-0.9.21 libraries and a huge collection of application packages – everything you need to build fully functional embedded Linux systems.