And it should function without the user having to switch SIM cards, pay outrageous roaming fees or deal with dropped calls.

FORBES: Fifteen Things We Wish Someone Would Invent

For instance, you can perform a keyboard or mouse function, launch a program, switch profiles or even tweak settings on another connected Razer product (like a standalone gaming mouse).

ENGADGET: Razer Blade review (late 2012)

For example, its Windows 8 Start key provides a quick and easy way to get back to your Start Screen, while the App Switching function key allows you to quickly switch among your open apps.

ENGADGET: Logitech's K810 keyboard pairs with up to three devices, has a button for switching apps in Windows 8