The big challenge for the outdoors type who is away from the power outlet but likes to take advantage of technology is keeping their devices charged up. You can get solar chargers and chargers that use the wind to make power.
Typically, if you want both wind and solar power you need to devices. A design concept from Cheng Peng uses a design that combines the ability to get power from the sun with a design that can also harness the wind. The device looks like a long tube when folded down. The end of the tube opens in four petals with solar panels on each.
The petals also act as the blades of a windmill for making power. Other features include a LED light for campsites and the device can be hooked to AC power, presumably to charge an internal battery. The design concept may have a few flaws, like the shape of the blades, but the idea is very good.