I think you are missing the even more important detail. These are all idle power consumption numbers. Intel is just telling us they've found a way to use less power when doing next to nothing. There's no claim you will see a similar magnitude improvement when rendering video or compiling a kernel.
This feature is probably related to some kind of new feature in Windows 8 where tweets and emails would continue downloading even when the laptop is asleep with a low power status LED/display or sounds to notify the user.
It is certainly not an indication we are going to start seeing i5 processors in cell phones in the next three years.
The solar panel demo was actually doing something like rendering video, though I believe you're correct that the panel wasn't powering the display device.
This feature is probably related to some kind of new feature in Windows 8 where tweets and emails would continue downloading even when the laptop is asleep with a low power status LED/display or sounds to notify the user.
It is certainly not an indication we are going to start seeing i5 processors in cell phones in the next three years.