- Universal, near-instantaneous per transaction alerts. It helps stop fraud right away rather than after-the-fact. It also helps solve problems while they are fresh rather than trying to resolve a month-old+ issue. Some countries overseas do this almost universally.
- On-restaurant-table credit card swipe rather than taking the card away and entering tip later. Many places overseas do this almost universally.
-- Side note on the txn alerts: I suppose it is due to the way Visa/MasterCard are processed, but I sometimes get alerts a day or more after i've done a credit card transaction. Some cards dont even have the option for alerts.
AMEX has great alters, almost instantaneous, but I suppose they control the entire stack, so that makes sense.