btw, the thing other companies should truly be afraid of:
Nintendo disrupting itself.
Nintendo killed the Game Boy Advance with the DS. Remember rumors of the Game Boy Enhanced floating about? Remember how the PSP was a GBA+++ (heck, it still is)?
Nintendo realized Sony could out tech the GBA, so Nintendo disrupted the GBA with the DS before the PSP could take over.
The key to disrupting Nintendo would be to make a disrupting product without Nintendo noticing. Or like with the Wii, make a product that no one (else) expects to disrupt the market.
There is no such thing as a console war. This is the first step to game design.







