AT Atlantic Power Corporation

Mobile sales professionals now will be able to accept credit card payments in the field using the MobileCharge solution on select handsets from Alltel Wireless (NYSE:AT), America's largest network. "MobileCharge gives sales professionals the freedom to take secure, real-time payments outside of the office," said Elisabeth Owen, president of wireless business solutions for Alltel. "MobileCharge is a great tool for companies whose salesforces routinely meet clients in the field. Working on Alltel's wireless network, it improves cash flow by enabling immediate payment and saves money by reducing back-office expenses." The MobileCharge software, developed by MobileVision, is being bundled with a magnetic stripe reader and printer from Infinite Peripherals. It works on the BlackBerry 7250 and 7130e and the Palm Treo from Alltel. Interested customers should contact their Alltel business account representative or call 1-800-BIZ-CNTR. About Infinite Peripherals Infinite Peripherals, founded in 1993, is a source for advanced mobile hardware solutions as well as receipt and OEM printers for the Point of Sale market. IPC products include printers, scanners, mechanisms and other related components. Mobility products target market needs such as transaction, barcode scanning, printing, signature-capture and location services. Learn more by visiting www.ipcprint.com, or call toll-free at 1-866-278-7860. About MobileVision MobileVision creates innovative, productivity enhancing wireless applications that are compatible with handsets running RIM BlackBerry(TM), Palm Treo(TM), and Windows Mobile operating systems. The applications perform mobile point-of-sale transactions, print receipts, scan barcodes, gather and submit electronic form data, capture signatures and synchronize with back-office systems in a real-time environment. Learn more by visiting www.mobilevis.com, or call 1-973-519-0853. About Alltel Alltel is a customer-focused communications company with more than 15 million customers in 37 states and nearly $10 billion in annual revenues. Alltel, NYSE: AT www.alltel.com