Is this the future for payments? Can it help Adult sites.
 

https://onlycoin.com/

http://money.cnn.com/video/technology/2013/12/05/t-coin-ceo-kanishk-parashar-app-start-up.cnnmoney/index.html?iid=S_Taboola

So do i need my phone nearby every time i want to use it?

Good idea - but looks very unsafe...

Would try it out if they weren't charging money for it