The other day I decided that I would quit thinking about the Instax Share and just buy the thing.
I could have bought from eBay or from overseas but I went Australian, via Gerry Gibbs Camera House. It was way more expensive but I wanted it within a week and with no issues.
Pretty cute device. I can't wait to take it with me to Sydney.
Basically you print photos from your phone to it. It uses Fujifilm instax film.
Here's a video to show you its awesomeness in action: