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Companies like Powermat and Energizer make inductive charging solutions for a variety of smartphones. However, if you could do away with the sleeve and have the inductive-charging chip built into the phone, you'd only have to buy a mat (and use whatever case you wanted to use).
Qi (pronounced chee), a new standard for inductive charging as established by the Wireless Power Consortium (WPC), is pushing to get manufacturers to integrate Qi chips into their devices, and we should see some Qi-enabled smartphones on the market in 2012. The iPhone 5? We wouldn't bet on it, but at some point in the future we think the iPhone will get some sort of inductive-charging chip integrated into it.
Chances of implementation: 20 percentPhoto by: Energizer
The iPhone 4S has the PowerVR SGX543MP found in the iPad 2 and we expect the iPhone 5 will get the next-generation PowerVR chip (the PowerVR SGX545 was also announced last year).
Chances of implementation: 85 percentPhoto by: Imagination Technologies
Word is a new A6 processor already in early testing in advance of the launch of the iPad 3 in spring 2012. The A6 chip is reportedly a 28nm process (compared with the A5's 45nm), meaning lower energy consumption and higher speeds.
The faster processor would improve the performance of Siri, iOS5's new integrated voice assistant, as well as host of other features, including still and video image capture.
Chances of implementation: 85 percentPhoto by: Apple