I think there is less differences between the 1000 and 3100 than between 1000 and 3000, because of no flash (less) in 3000
here we have the same processor, same flash, same ram, and just a little cf slot more in the 3100
of course, maybe, i'll have no access to my additionnal cf slot (the HD)
and if this is the only problem, i think this will not be the worst
but without an opinion from a dev of pdaxrom, i'll follow your advice Mickeyl