Bending Time would really be useful sometimes… otherwise on the theme of my chosen field of engineering; I would like to see much more Linux based operating systems on school computers, so that our future software engineers (i.e. today’s students) are happier with doing all sorts of stuff with processors and devices instead of having to go through all the basics at university level. That would be really ace I reckon!
I suppose if I thought long enough, I’d be able to come up with a million things, but right now, it would be really handy if there was half the current amount of gravity on Earth. Then it would be a lot easier to send things into space, a lot cheaper, and we could send bigger things too.