Hi.
We have started our project on Kickstarter today - The Octodon Keyboard.
The main idea behind it is to involve all fingers in typing on mobile devices. It is done by placing 8 input elements on the back side of a keyboard.
Unlike other back-typing projects like Grippity or TrewGrip we don't rely on QWERTY, because it's not optimal for handheld usage. Another significant difference is the size: our device is pocket-sized yet comfortable to hold while typing. To end with - it's totally adjustable: all it's input elements are separate magnetic units which can be placed anywhere within the mounting surface.
A drawback is: yes, one need to learn typing. Though it is easier than learn touch-typing on a standard keyboard it's still a problem for many. We try to reduce this problem with "matte glass" interface, which simulates shadows of your fingers on the screen of a device, so like you can "see" them through the matte glass.
This keyboard is packed with exotic solutions and I would like to ask for your feedback. I will be glad to answer any your questions. If you'll find it reasonable to share this information with those who might be interested, I'll be extremely grateful for this.