My brother and I are building a website for the Bolivian market:
https://github.com/oceanis
It's nothing new, nothing unique in terms of algorithms or anything fancy. Our prime selling point is speed of the app, and openness via our API.
I decided to open source our ember-cli frontend app, and our Rails 4 api server.
Pro's to this I feel are exposure as a company, a literally -real- portfolio example ("Just check out our github"), and growing as a company in Bolivia.
What might be the cons of this? Has anybody open sourced their core and why? What are the angles I'm not contemplating?