See, they're right. It's annoyingly about specs and that's all they care for. They say they won't until the userbase is there, but that's utter bull.
The Wii had a fantastic userbase, the 3DS has a decent userbase and they were both practically ignored by the core publishers and the Wii was mostly limited to mini-game collections and other such titles. People say "well the market for the Wii wasn't right for those games", and to an extent, sure, but if there were enough games, there would have been a market for it. Call of Duty on the Wii always sold pretty well, despite being less graphically capable.
Hell, specs isn't the entire issue at all either, else we'd have got all the multiplatform games over the past year or so for 360/PS3 like Tomb Raider and so forth.
There's also the factor of financial incentives. Practically every third party game these days has exclusive content on one platform or another. Nintendo typically doesn't deal with these financial incentives and are less likely to throw money at publishers in order to secure a title on the platform, or even just for exclusive content. They're showing a shift in that again though, like with the Gamecube, where they're paying third parties to develop exclusive games, but it's not enough.
Nintendo devices, since the SNES, have never had strong third party releases. It's unfortunately been the case for almost 20 years now, and it's never going to change.