i remember that on palm there is Master Of Orion clone, and theres 2:
1. Strategic Commander by Zindaware
2. Planet by ???
These 2 games very simple yet still addictive..
I prefer Strategic Commander, and the difference from MOO is: there is no ship customization only one ship could be manufactured, there is no strategic battle just random oucome fight (like civilization), there is no technology advance customization only one technology could be researched.. and the last there is only 2 building could be build on planet: Manufactur & Research center.. Manufactur produce money or ship, money could be used only for build building..
It`s basic MOO