Next generation smartphones, which could include the yet to be announced iPhone 5 and perhaps a new Nexus model from Google, could be getting Nano SIMs instead of micro SIMs. When Apple launched the iPad and iPhone 4, the company opted to use microSIMs which are essentially the same as full SIMs but with a lot of the wasted plastic cut off from around the edges.
We now hear that nano-SIMs are being tested by Apple for the next generation of devices due to launch over the coming months.