Pi is a new crypto currency, which is currently in beta. The coins cannot be traded yet, but are already listed with a ~ price of 0.35 Dollar/Pi and stage 3 is coming up, in which the coins can be traded.
The coins can currently primarily be minted via an app, but a Windows/Mac version is also available. To start mining it is sufficient to open the app once a day. The app does not consume any battery resources or data volumes. At the moment the miningrate is 0.25Pi/hour, which corresponds to a daily earnings of 6 Pi. This rate will be continuously increased by recruiting additional miners.
Pi is based on a trust process, so that you can mine with friends and family members in small mining pools. Registration is currently available by invitation only. This increases the miningrate of both of us by 0.05 pi and you get 1 pi directly. I would be happy if you would take me as your referral: "aaaleeex7".