Linking your favorite traveling artists across the globe
It only seems to have coverage in major metro areas so far, (My home fair MNRF is not covered so far) but this company is looking like an interesting option to watch for cheaper data access for running credit cards.
If I read it right it's 1GB of 4G data for $14.00 and it doesn't expire. It's not a monthly fee, it's based on the data transfer so if you only use it weekends at faire and while on the road, you might might only have to pay the $14.00 a couple times per season.
And if other people use the open WIFI signal you earn free data so you could potentially share it with neighboring booths that are in range.
Here's a review of it http://www.popsci.com/gadgets/article/2013-02/karma-wi-fi-hotspot-r...
Here's an article about similar devices/plans
(Heck, I just realized on a busy day I could use this to have multiple staff running credit cards through Square at the same time on my iPad and my iPod touch.)