Excitement over the potential of Twine, a simple physical computing device with a web interface.
I really like to see development around physical computing and while
Arduino is amazing, it's still a bit tough to get started with.
The idea behind Twine (a well-funded Kickstarter project) is to have a simple devices with some sensors (accelerometer, temperature, etc.) and wifi plus a web interface to do really simple programming (by simple I mean if temperature goes above X send an SMS to Y). I'm excited to see a lot more development in this space over the next few years as hardware production gets cheaper/simpler/less scary and people start to see the value in devices that talk.