There are many devices where a keyboard would be very useful. However, since they should be mobile and therefore as small as possible, a usable keyboard is usually dispensed with. A new device from VKB, which was presented at CeBit, can help.
The virtual keyboard can project a normal keyboard onto practically any surface. You can then type, for example, directly on the table. It is also possible to simulate a mousepad. This technology is intended to be used in devices such as cell phones and mobile computers in the future.