Just to clarify, when I said "Technically we could get by with 5 commands" I meant that this is the minimal thing needed to just play a game, not to give us an adequate starting set.
Don
I don't think this conflicts with the goal of simplicity, because I think there are very few core things needed. Technically, we could probably get by with 5 commands, but we might be far happier to include another 6 or 7 that will be incredibly useful later.