It is strange that they were so unprepared for the release of their own console.
Now I didn't jump in when the PS3/Xbox came out, I actually got a Wii (my first Nintendo Console)... but as i recall for quite a long time people complained there were little games available on the consoles (especially the PS3)....
So I think Nintendo, considering how badly they've been behind the curve in things such as trophies/networking, I really believe they were totally unprepared for the jump up from SD to HD. While Sony and MS had that pain (and 3rd parties) in 2006/2007 etc.
Why else isn't there a Zelda etc ready. Even as a non fan of Nintendo Games, you would *EXPECT* a game like that to be ready for or near launch...the rumours say its not going to be ready until next year seems laughable.
I think because the Wii-u is no wii, even if the next gen consoles don't sell amazingly well to begin with (in this economy its very possible)...I think the combination of better hardware, better 3rd party support and supporting the fans of their consoles with games such as killzone/halo/uncharted etc will mean the core fans will buy and be happy. I really don't think it will be very long for the Wii-u to be overtaken and pretty much insignificant for anyone who isn't a nintendo fan.
If 3rd parties support the consoles earlier this time... if i have the option of playing a AC4/GTA5 or the current gen versions (i.e they release at the same time), then this will convince many to move to the next gen consoles pretty much straight away.