iPhone OS 4.0 supports 5x digital zoom which is of course a really cool feature. Just open the camera app, single tap anywhere on the screen and use the horizontal scroll bar to zoom in and out. However 5x zoom via 3.2 mega pixel camera seems inutile but this gives us a very much clear idea about the camera of iPhone 4G which will be shipping this summer along with iPhone OS 4.0.
As soon as Apple released iPhone OS 4.0 developers preview, one guy named EthanIn1970 already managed to install iPhone OS 4.0 on his iPhone 3GS. Check out this video in which Ethan is demoing the Digital Zoom feature of this latest firmware by Apple.
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