My guess is the NiMHs with their high maH rating would work pretty well in the OmniGo. The battery gage will probably go down quickly at first, then stay at 1/3 to 1/2 for a long time--NiMHs lose voltage rapidly at first, then hold.
I'll post results as soon as I can.
Craig de Fasselle
PDA Forum Leader
(Conferences Wed. at 9:30 pm ET -- Keyword PDA)