I do not understand this guy.
Why would you think they will fail in gaming?
PS3 is no 2$ crappy company that would just make the PS3 just for blu-ray movies and other entertainment systems and bail out on you and that thought is just stupid...your discussion has no ground here.
Just as much as I smile when stupid executive officers fail, I will agree with Ice Sony and MS are not going anywhere any time soon.
And there is enough market for both to be extremely profitable. I will own a PS3 when the games I like come out for it (mainly Squarsoft titles).
I have gotten enough over my own prejudices to say the machines are equal. Others really need to look at the data and realize the same.
Basically in the end it is about enjoyment. Buy the system that has the games you like and you will be happy