The BTVKB is an enhanced version of the Virtual Keyboard (VKB), a product similar to one announced a couple years but wrapped in trouble (read here, here, and here).
Aside the similarities, this product is available in Hong Kong. The BTVKB is a pocket-size device that projects a full-size keyboard through infrared technology onto any flat surface. Users could then type on the infrared images as if typing on conventional keyboards. Without the need of any wire connection, BTVKB provides unprecedented convenience and mobility to users.
The device is based on Bluetooth Version 1.1, class 2 (10m range). The company says it can be used with a range of PDA and smartphones: HP iPAQ 2210/5455/5550/rx3417/3715/4700, Palm Tungsten T3, Palm Zire T2, Palm Tungsten T5, SPV E200, desktops and laptops. A full battery gives 2 hours for continuous typing. The virtual keyboard costs US$199 in Hong Kong and Singapore.