I wouldn't necessarily call myself a tech guy, and I'm definitely not an inventor... But if I were more of both, and less of a writer, I would totally be a Futurist.
There's a show on The Discovery Channel called NextWorld, which I've never seen. It tries to take a look at emerging technologies that will shape our future. What I have seen is the slightly cheesier but I'm sure no less brilliant 2057, which takes a look at our world 50 years from now based on current tech trends and development. Cheesy, maybe. But fascinating.
Here's a tech dump for youse fine folks with a little more practicality and less futurism, courtesy of the fine folks over at Engadget: