Pult is a nifty little site that I just found out about from David Andrade's blog. This site allows a person's smart phone to stream videos, presentations, etc. to any web enabled device (think smart tv for a giant display). It's rather easy to use, just go to Pult's website on a smart phone, enter the 4 digit code and hit connect. That's it.
I recommend checking out Pult by clicking here.
Below is a brief demo...
Pult from Pult on Vimeo.