snowkatt: the fuss is about you as a customer make an investment and in return for that investment you get 5 to 6 years of use and games out of it
the announcment of the new nintendo console pretty much shatters that trust because why bother getting the wii U now if the new nintendo is coming soon TM ?
thats what killed sega
they made promises they couldntt keep and killed the megadrive and 32 X and sega cd in quick succession and then let the saturn die in the west in favor for the dreamcast
the 32X is particularly egregious because it was barley a year old when sega killed it and sega promised full multi year support
so this is pretty much the death knell for the wii U
There are some parallels to be drawn here, for sure, but Nintendo's in a position where they have to at least show that something new is in the pipeline, especially given the fact that they've lagged behind in hardware strength going all the way back to the Game Cube (or even the N64). The WiiU and 3DS's sagging fortunes means that the dubious nature of the "Osborne Effect" may be less relevant to them if they're going to start talking about new home and/or portable gaming hardware now.
They may have been able to get away with electing to not take part in the hardware arms race that MS and Sony have engaged in, but sooner or later they're going to have to field hardware that's at least competitive with the XBone and the PS4 (or whatever is coming next with those consoles). Otherwise, Nintendo may as well go down the route of Sega.