What intrigues me the most about POW is the Facebook OAuth integration. As some one who has mostly dismissed block-chain currency as a mere curiosity due to the complexities of securing wallets and generating new currency; POW's integration with a social media platform may differentiate it from previous block chain currencies and bring a wider audience to it. Certainly hearing about it from you encouraged me to read more about Etherium's token architecture. While the ease of claiming POW lite tokens added some fun to what had been a dry subject for me in the past.