I wonder if 10 years from now people will look back on when gaming used to be confined to a flat screen in front of your face and laugh.
I don't think that big of a change happens in a decade.
What peripherals popular 10 years ago seem silly now?
Flip phones?
Flip phones don't seem silly, they just embody a different set of tradeoffs - as phones they're better than just about every other design out there, but they're not as good at texting, and suck at web browsing. They won't be truly outclassed until iPhones have haptic feedback.
Some games do not need more than that - especially strategic games like Heroes of Might and Magic, Disciples and others. I still play HOMM (1, 2, but mostly 3) and beat the campaigns of Disciples over and over.
Microsoft is betting on 3d gimmicks, Sony bought Gakai.
I don't see it as a gimic. Microsoft has the amazing Kinect, and 3D projection is its missing counterpart. That combination could lead to a new experience of gaming for some titles. Its a shame its limited to games...