Prototypes and concept gear were all the rage this week. From sleek-looking winners like this revolutionary hearing aid to eyebrow-raising dorkfests like Toyota's one-man i-unit, we zoomed in on the horizons of technology. Gotta love the suitcase bike and 3-D TV, but what was up with that goofy hear-monitor mouse and that crazy Puzzle Computer table?

Between cutting-edge gadgets, columnist Peter Suciu took some time out to examine the oft-confusing land of video-game ratings. More headlines from the world of tech:

Saturday: Vinegar spokesbot secretly wishes to make slaves of us all
Sunday: Roundup: The Amazon music store
Monday: Retro-style word processor turns you into Matthew Broderick
Tuesday: Sanyo makes a splash with world's first waterproof camcorder
Wednesday: Enigma fan redefines cutting edge of design
Thursday: Sony shows off flexible full-color OLED screen
Friday: Multi Meter Multi Tool, almost like a clairvoyant assistant