Where can one find information about Miles credit card?

Researching to find information regarding a Miles credit card has not provided any useful information. It appears that although there are a number of credit cards that offer the collection of points for travel and air miles, there is not a Miles credit card. Some cards one might want to consider are the RBC Visa Avion card, the CIBC Aerogold Visa and the Aspire Travel MasterCard's.