The Telegraph claims that Apple is set to release a slightly updated iPad WiFi + 3G model with an integrated SIM-card system instead of its current micro-SIM card system, in the coming few weeks. It'll be similar to the current model, but the "lock" button the right-hand side will be changed to a "mute" button similar to the one on the iPhone.
Apple is able to do so as no mobile operators subsidise the iPad devices for sales.
Apple has also given up on its plan to bypass operators after they warned that they would refuse to continue subsidising the cost of the expensive phones. At present mobile operators pay Apple the full £375 cost of the phone, which they pass on to consumers for free if they sign up for 24-month contracts.
Apple's iPad currently supports a micro SIM which allows consumers to purchase a 3G data plan. Apple is also expected to issue a software update for iPad owners in weeks leading up to Christmas.