[Empeg-technical] Can empeg boot another OS ?

[amold at empegbbs-noreply.merlins.org]

I want to try my hand at some ARM programming. Since the empeg is the only ARM device I have, I thought about playing with it. 
So, the question is: Is there any technical reason that I would not be boot a different OS image in the empeg ?
I don't know much about embedded systems, so pardon me if the answer is obvious  :-)