There are only two companies that could live off their own ip's. Nintendo and EA. These are also, btw, the largest gaming software publishers as well.
However, one huge benefit of a one console solution is that it would quickly reduce costs on a system that could be perfect for home entertainment.
The quality and innovation of Nintendo, money and marketing of MS, and the technology of Sony. Then to top it all off, the games of every publisher, including the download-able content of all older machines.







