Mobile operator Three (3) has cut the price of USB Modems for pay-as-you-go customers taking its HSPA (3.5G) based 'Mobile Broadband' service to just £69.99. With current PAYG price plans, customers can get a 1GB data allowance with a £10 add-on, 3GB with a £15 add-on and 7GB with a £25 add-on. Each add-on lasts for 30 days.