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Here's my particular heresy.

Integrate the mouse, keyboard, and electric pen into ONE device.  Visualize two hand rests each with four buttons resting under the fingers and a button on the side where the thumbs naturally rest.  That gives 8! combinations for alphanumeric input and 2! combinations for control.  The two hand rest cables connect to a junction box with a right/left handed switch so the user can define dominate hand position.  

The dominate hand controls the mouse and pointer/pen functions.  The user's other hand simply rests on the stationary controller, although in theory it could also be used as a dependent mouse, pointer, and pen functions - if a user wanted to Go There.

The junction box has a USB port so the user can easily switch between character sets, graphics, & so on either hard-dependent or on-demand.  As someone who uses Logic and mathematical symbols semi-regularly it would be REALLY nice to have these symbols easily and quickly available from the input device.

Practically speaking this heresy was developed in the mid-70s by IBM.  IIRC, again, it took between 6 to 8 weeks to learn how to use it.  After going through the hassle an immediate advantage was typing speed doubled and in some cases went beyond that.

Since it was patented by IBM, and they decided not to introduce it, you can forget ever seeing it on the market.  

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre

by ATinNM on Tue Feb 2nd, 2010 at 02:40:55 PM EST
you can forget ever seeing it on the market

BWAH!

Diversity is the key to economic and political evolution.

by Cat on Tue Feb 2nd, 2010 at 02:56:56 PM EST
[ Parent ]
Off the top of my head and based on decades -- Yes! decades -- of experience ;-) ...

A start-up could whip it out in about 2 years at a funding of ~$100 million.  $2 million for development, $10 million to get from Engineering Prototype to Product in the stores, and $88 million to fight-off the patent lawyers at IBM.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre

by ATinNM on Tue Feb 2nd, 2010 at 03:31:12 PM EST
[ Parent ]
88 super-large. You got that right.

Diversity is the key to economic and political evolution.
by Cat on Tue Feb 2nd, 2010 at 03:36:08 PM EST
[ Parent ]
Morse code is the easiest text input method for touch screens. There are several iPhone apps for it. They will be available for iSpad too.

And let's see if these iPads get hot enough to become iPans.


You can't be me, I'm taken

by Sven Triloqvist on Wed Feb 3rd, 2010 at 12:13:06 PM EST
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