How about no limit for earning air miles? It's possible with the new Platinum version of the America West FlightFund VISA. Bank of America took its America West FlightFund VISA to the platinum level this week. Under the Platinum program, cardholders will now earn two miles for every dollar spent on America West ticket purchases and one mile per dollar on all other purchases. In addition cardholders will now receive 5,000 'FlightFund' bonus miles upon opening an account, 1,000 bonus miles each year upon renewal, and two America West 'Club Passes'. Bank of America introduced the America West 'FlightFund VISA Classic' card more than 10 years ago. The program does not carry a mileage cap for earnings. The 'America West FlightFund Platinum VISA' carries a $75 annual fee. The interest rate is 14.99% (Prime +6.99%), adjusted quarterly. Customers can pick up an application at America West ticket counters or call 1-800-928-AWFF to apply.