I was going to try and make this first 'real' post something deep and thought-provoking, but instead, it ended up being about a more practical issue that I run into frequently when working with kids and technology, battery life. Whether we're using cell phones, handheld computers, digital cameras, or laptops, the battery always seems to die at the most critical time. Much research is being done on alternative sources of power such as fuel cells, or ultra-low power devices such as the cellphones described here.
Moreover, one initiative at Intel Research in Seattle is looking at eliminating the need for batteries altogether. A description of this project can be found in this Technology Review article by Kate Greene.
I hope they come up with a good solution for the battery problem, both from an educational and environmental point of view.