I would welcome this move in the US. Visa and MasterCard have tried to lock up the market and fight tooth and nails when merchants try to encourage customers to use other methods. If you want to see how evil the credit card companies are just look at some of the documents coming out from the lawsuit filed by WalMart.
If the airlines now charge you extra if you are overweight, have extra luggage, want to eat a meal or drink a glass of wine, what is the problem with the extra 1% fee.?