But they're for completely different purposes. I already have home consoles to play on when i'm in my own home. If i'm actually playing on the go at all i just want to play something simple. It doesn't matter how many buttons you give a handheld, it will always be a watered down home console. I just don't want the same thing for both.
My point about the iphone is a lot of those games wouldn't exist without that simple control scheme and those are the games i love. So for me personally i can see how a simpler control scheme leading to better games.
Edit: If gaming was still limited to a dpad and 2 buttons (not that i'm actually advocating that) it would still be in 2D which would make it infinitely better than the prime games for me.
I guess we just want very different things from our handhelds. I want a watered down home console. I want the chance to play 'proper' console style games as well as simpler, quicker experiences (predominantly found on PSN or the eShop). I don't see why I should settle for one or the other when it's perfectly possible to have both.
I have an iPhone for playing quick, simple games in short bursts.