Where are they now: CES 2011's most promising tech revisited

We're two days away from dropping in on Las Vegas for the start of CES 2012. Before we get started on all the crazy new stuff that'll get shown off in a convention center full of bloggers, journalists and business folk, let's hop in our time machine and take a trip back to CES 2011.

Was last year's CES just smoke and mirrors, or did the companies that promised their gadgetry deliver? Follow us through as we warp back to last January.

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