Handheld computers with integrated keyboards used to be quite common. But Psion abandoned this market, and Microsoft has allowed its Handheld PC variant of Windows CE to wither on the vine. This leaves users with few options -- in the UK, you're basically stuck with grey imports or obsolete hardware. External keyboards for handhelds are therefore quite popular, and the best of them allow for touch typing at reasonable speeds. But even the smallest of these folding keyboards represents a significant addition to your travel kit, and they often feel cramped to use. I.TECH (part of the Hong Kong-based Hutchison Whampoa group) has identified a gap in the market and come up with the Virtual Keyboard: this is a small unit that projects a keyboard onto any surface, and connects to a range of smartphones, handhelds and notebooks. It’s certainly innovative, but how well does it work?