Can Sony keep fightiing billion $ companies like Nintendo,Apple,&Microsoft?

[Hisiru]

I think that we can't lose the Sony, I really don't like the Sony's ideias, but is a very important enterprise in the game industry, and without Sony, Nintendo will lose the competitivity, so, will not have pression (in the portables), and Nintendo will relax without make good games.

But Sony has another markets.