try out periscope.com (owned by Twitter). It's basically a live-streaming video app that let's you connect with people from anywhere.
I'm getting between 10 and 20 email captures per day by allowing my iPad to stay pointed at a piece of paper with my lead page's web address on it. Totally hands free.
Just turn on and go about your day.
Again, this isn't a game-changer, but it's pretty neat.
Make sure you set your location to "specific", and include something catchy as your status.
Let me know how it goes. Cheers.