First there was FourSquare: Check in when I'm at a bar or a restaurant. Cool, my Facebook friends can meet me. Then there was Miso: Check in when I'm watching a TV show. Cool, my Facebook friends can start a conversation with me about Mad Men.
But now I'm enjoying a really amazing Left Hand Brewing Company Milk Stout -- where's my Android app for checking in what beer I'm drinking? I can't find one. Would be an awesome product.