I was more surprised at the incredible amount of buzz generated for Coin as if it were some totally new idea. I couldn't think of the name for most of the morning (Protean Echo,) but I remembered seeing this concept a year ago... Very happy that the others have been posted so people can realize it's not new or unique. As for the idea itself, I find it hard to believe the market for extreme-first-world-problem-users is large enough for any one of these companies, let alone all three. My morning commute photoshop: http://bit.ly/1at9PLO