Strida has hit the market with being one of the coolest fold up portable bikes.  Available in nearly a dozen colors, this surely is an attention getter. 

Specs:
Bike Weight: 10 kgs
Frame: 7000 Series Aluminum
Drive Train:Kevlar Greaseless Belt Drive (up to 50,000 miles)
Wheels: Alloy 16” Rim
Brakes: Disc Brakes
Speeds: Single Speed
Folded Size: 45” x 20” x 9"(114cm x 51cm x 23cm)
Grip: Gel
Bottom Bracket: Welded
Luggage Rack: Plastic or Alloy new option
Weight Limit: 100 kgs
Height Limit: 153cm – 193cm