I got a $10 OmniTech flexible keyboard at Staples yesterday. It’s a funny little device that can be rolled up and packed away, while still being fully functional. At first glance, it’s just a regular USB keyboard with a silicone coat instead of a hard plastic shell. Further inspection through the translucent silicone confirmed that the innards were, indeed, identical to those of a regular keyboard. It consists of two flexible circuit boards overlayed over each other. Each layer has a different pattern of traces, and each keypress occurs at a unique junction to connect the circuits.
So far, it’s been nice to finally have a low-profile, full-sized keyboard for my laptop. It’s quiet, so it’s good for meetings and online voice chats. And, of course, it’s easily storable and transportable. However, it does have its disadvantages. The rubbery keys do not feel “right,” and that may result in slowness.