A Bluetooth connection lets it sync wirelessly to most smart devices, and a lithium ion battery holds enough power for two hours of typing and can be recharged through USB. Like virtual keyboards of the past, this one projects a laser outline of a full-sized QWERTY keyboard in front of it, while an optical sensor tracks a user's finger movements as they type. This certainly isn't the first virtual keyboard on the market, but it is the smallest and most affordable to date. For a more compact alternative, Brookstone has begun taking orders for a new virtual keyboard from CTX, which projects a usable laser keyboard onto any flat surface, all while fitting nicely inside a small keychain. But these all just make your device less mobile or give you one more bulky thing to carry. There are plenty of solutions for this, from snap-on cases with keyboards built into them to keyboards that fold into a compact package. Even though tablets and smartphones are improving and adding new features all the time, a shrunken keyboard on a touch screen still doesn't compare to the comfort of a full-sized keyboard for typing.
