Now, I'll be carrying a phone with more computing power than those astronauts could have dreamed of.
But, how do you keep that power-hungry little monster charged up?
Here's the solution I decided on.
This piece of gear will be important to me because it's how I'll keep my iPhone 4 charged during this trip. And I'm packing that modern marvel because of its camera, built in library of books, maps and trail notes, compass, back-up flashlight and much more (including, of course, text, telephone and internet.)
First impressions of the solar charger are good. It feels solid enough to have a reassuring heft. You can charge it using mains electricity, via USB and a computer or by solar power.
So far, all three methods work. A full charge on the Power Monkey should replenish your iPhone's battery twice before you need to recharge "Curious George" (as I'll call it.)
Look out for a more in-depth review. Until then, here's a photo of the solar charger, battery and iPhone/iPod attachment with a little selfie of my hand to give it some scale.