JimmyL has updated his RTS game for the DS, heres whats new:

Update. v0.6
My first attempt at spending any time on art, I created sprites for the Archer and Infantry. Slight scale problem. :>
Fixed a minimap bug where you could see the enemy in any area you explored rather than just the places you can see.
Toned down the archers effectiveness against units a bit, and a lot against buildings.
Slowed down the workers construction speed.

Heres a screenshot:

Download this excellent looking RTS game here --> http://nintendo-ds.dcemu.co.uk/dsrts.shtml