PHOTO: Intelligent Energy

STRONG, SILENT TYPE: Suzuki’s prototype fuel-cell bike is clean and quiet but might rely on a nonexistent hydrogen supply.

It’s the kind of bike you’d expect the hero of a futuristic sci-fi thriller to ride. The sleek, minimalist design of the Suzuki Crosscage is sure to elicit oohs, but it’s the bike’s performance that will leave mouths agape. Though the hydrogen fuel cell–powered electric motor will likely generate enough torque from a dead stop to leave ­fossil fuel–powered motorcycles in the dust, the bike emits only water vapor from its exhaust and is whisper quiet. But how many refueling stations in your area sell hydrogen? (We haven’t noticed any, either.) It was just this type of conundrum that made labeling the bike and five other items—including a pen that keeps track of what it has written, a head-up display that looks like an ordinary pair of sunglasses, and a computer that’s literally on the desktop—winners or losers.

To have your say, go to

• You Tell Us: Dutch Start-up Hopes to Spark Takeoff of Flying Car Market

• You Tell Us: Video Glasses for the Spy in All of Us

• You Tell Us: Fuel-Cell Motorcycle May Help to Rev Up Hydrogen Economy

• You Tell Us: An Electronic Pen That Listens and Talks Back

• You Tell Us: Microsoft Surface Runs the Table

• You Tell Us: Gigabit Wireless on the Cheap

PHOTO: left: microsoft; right: spark design engineering

FECKLESS INSTRUMENTS?: Are a touch-screen computer from Microsoft [left] and a car that morphs into a helicopter [right] more than just expensive novelties?