I required 2 confirmations for my ecommerce site only because it wouldn't cause a delay in shipping their order. http://blockchain.info/charts/avg-confirmation

I required 2 confirmations for my ecommerce site only because it wouldn't cause a delay in shipping their order. http://blockchain.info/charts/avg-confirmation-time http://blockchain.info/charts/avg-confirmation-time 12 minutes to one confirmation isn't terrible for the purchase of digital goods...but in person transactions would be limited.