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Google has by now dyed-in-the-wool that it will show the next version of its Android software during the crucial note, while strong guesswork suggests there will also be a new activity-tracking platform called Google Fit and a new move into connected TV called Android TV, possibly with a set-top box to show it off.
But this being Google, there are plenty of other areas of its commerce that may get the limelight: Glass, YouTube music, Project Ara, Google Fiber, and Project Loon. Here are a few predictions on what's likely to be talked about on-stage