To those thinking once you have Panzer Tactics you don't need another, well if that was the case, why does it seem that there is an endless spiral of games out there other than Commander
There's room for more out there than Panzer Tactics
Plus, there's more to war than WW2.
I want fighting in ancients, napoleonics, civil war and more.
And remember, the DS might be popular with kids, but the DS is also popular with adults too.
And there is more than Panzer Tactics right now too.
Advance Wars Dual Strike, Tank Beat, Call of Duty, Brothers in Arms, Steel Horizon, Age of Empires: Age of Kings, B17 Flying Fortress, Front Mission. As you can see, if you have a DS, you are not stuck with Mario and a Pet simulator
And for more adult non wargamish stuff, you can play football games, golf games, pool games, poker games and boxing games. They have useful games like Brain Age, and Solitaire and Sodoku.
All we don't have, is a LOT of wargames yet.
Now I am not saying Slitherine is going to become "rich" even if they corner the DS wargaming market, but I doubt Ian ever expected to do so

Still, Matrix Games seems to be doing well with PC titles, but why let them have all the games
And the nice thing about DS titles, you release it, and then you move on. You don't spend a year trying to make patches to satisfy every convoluted form of computer configuration under the sun. There has to be something nice sounding about that hehe.