Guys nvidia is entering cpu market with its "project denver". They are said to take the ARM path and will make cpu's for desktop and server market and plan to give amd fusion and intel a serious competition.
Check this link.
Check this link.
Nvidia's "Project Denver"
Microsoft said that Windows 8 might support ARM. x86 applications will need recompiling anyways. Different architectures.
Might come good for tablets and netbooks. Open Source applications being recompiled and optimized for ARM is a given, but for proprietary applications, it would be meh 
If nVidia manages to break into x86_64, that would be a different story altogether...
If nVidia manages to break into x86_64, that would be a different story altogether...