Samsung's SoC's have an MMU and will run Linux. Take a look at the Hammer board (http://www.tincantools.com http://www.tincantools.com). Some of NXP's ARM micr

Samsung's SoC's have an MMU and will run Linux. Take a look at the Hammer board (http://www.tincantools.com http://www.tincantools.com). Some of NXP's ARM microcontrollers have an external memory bus (but most don't have an MMU), and will run uClinux given enough RAM.