Wonderful quotes as always, Andreas. Particularly, that moobunny post by Nicholas is devastating.

I'd like t point out that theres much variety in ARM processors, being several instruction sets, superscalar and not, etc. Perhaps some obvious literature here would help:

http://en.wikipedia.org/wiki/ARM_architecture#ARM_cores

Too many candies in the box, I'd say. So, it's not that easy as "port it to ARM". That "ARM" is a very, very broad thing. Not to talk about on-die peripherals that chip makers add on their own...