[AlfonsoP]

It is very obvious to me that these keyboards on Amazon are a lot thicker than the MS keyboard (and probably a lot heavier). Look carefully at the thickness of the edge: the MS one is so thin that they had to create a bulge around its micro USB port! Also the Amazon keyboards are using hinges, but the MS keyboard fold is made of flexible material so it is probably more durable.

[GhotiFish]

are you suuuuuuuuuure it's thinner?

http://cdn.pocket-lint.com/r/s/727x/assets/images/phpkhkakk....

[lisper]

Yeah, it's thinner. The dimensions are on the Microsoft Store site: 0.45 inches vs 1.2 inches.

Still doesn't qualify as "reinventing the keyboard" IMHO.