Is Nintendo's innovation causing more harm than good?

So, with the Sony recently claiming that the new Wii U console is 'in its own generation', it's impossible not to think of Nintendo's many generations. Nintendo are not necessarily seen as the leaders of gaming technology by everyone - there are the X-boxers and the lovers of Sony. However, it can be noted that Nintendo have led many console developments. The Nintendo Wii was at the forefront of a brand new type of motion controlled console gaming, paving the technological roads for X-box kinect and the PS3. The 3DS is the first console to have fully functional 3D, with capacity for the manipulation of this asset in the form of a 3D adjuster. This is certainly the first that the gaming world has come into contact to which has been widely recognised as a leading innovation.
However, as we all know, I am a total Nintendo whore, and this information is not totally tainted with my totally biased views. It cannot be ignored that the Nintendo Wii is definitely the weakest of the motion controlled consoles. It's the least powerful, disregards many possible applications and uses of the motion feature in many games, and is not generally seen as what can only be described as a 'big boy's console', it's been designed for Nintendo's basic games (Nintendo Sport, Nintendo Party etc.) and it shows. Even though Nintendo paved the way for motion gaming, they have been left behind. So, can it be assumed that X-box and Sony are going to take 3D technology, and create a console better than the 3DS and, having learnt Nintendo's pricing mistakes, overtake the original 3D console with an even better platform. This is what we saw with the Nintendo Wii, and it looks like Sony are already eyeing up the Wii U technology, eager to participate in this new 'generation' of gaming.