Rather than poking about on the tiny keys, the Lasterkey keyboard replicates a full-size one onto any flat surface from your Bluetooth-enabled device. So find a table and type (and look slightly crazed). Keystrokes are identified by combined input of a sensor and an invisible infrared layer, with the connection set up via a Bluetooth hot plug function or serial port.
Pocket-sized and powerful by Lithium-ion battery which offers around 3.5 hours of continuous usage. Available now, priced around £120.