SAN FRANCISCO (KCBS) — Google is purchasing Bump Technologies, best known for an app that lets smartphone users share files by bumping their phones together and it gets photo-sharing app, Flock, as part of the deal.

Bump started out as a contact-sharing service, but then it evolved into allowing you to share photos, files, music and video. It's a way to transfer data through cell phones literally by touching or bumping them together.

Flock is a photo-sharing app based on geo-location proximity. By that I mean you can more easily collaborate with people that are near you by taking pictures for instance, say at a party or an event that you're all at. Because the application knows where you're at, it will create a photo album based on the pictures that your friends have taken within that proximity. You get to choose what you'd like to share with them and it creates collaborative albums.

I think Flock is particularly interesting for Google because it gives Google+ a better chance to compete with Facebook since they own Instagram.

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