The feature I'm most excited about is e-mail receipts. If I never had another paper receipt again, I'd be perfectly happy. I also think using the audio jack as

The feature I'm most excited about is e-mail receipts. If I never had another paper receipt again, I'd be perfectly happy. I also think using the audio jack as the reader is incredibly smart. Actually, there are two things about this system that I really like: 1. I can see a future where paper receipts are a thing of the past. 2. If someone uses my card fraudulently, I'll receive an e-mail a minute after it happens alerting me that something is amiss.