Sprint announced today that it would be adding two new cards that will be complaint with its forthcoming EV-DO Revision A upgrade. The new cards are the Pantech PX-500 and the Aircard 595 from Sierra Wireless. Both cards will support speeds ranging from 450 – 850kbps. The PX-500 will be available for $199.99 or free with a two-year contract, while the Aircard 595 is $24.99 or as low as $99.99 with a two-year agreement.