Perfect on screen keyboard?

[Radek Polak]

Hi,
while we are talking about hw keyboard, it would be also nice to discuss 
software keyboard. My impression is that nobody really tried to make a perfect 
keyboard.

So here is my idea:

the has standard qwery layout. The keys are twice as high as wide. Two keys 
are always grouped in one square - like in the picture:

+-----+-----+-----+
| q w | e r | t y |
+-----+-----+-----+

You can press the letter and it normally types it. But you can also press and 
hold the square and move left/right and it types the left or right letter in 
square. E.g.

	press and hold "qw" sqare, move to left and release: it types q
	press and hold "qw" sqare, move to righ and release: it types w

This has the advantage, that you are targeting twice as big square.

You can see it in action here:

http://www.youtube.com/watch?v=RZAaSMYPcec

Maybe there could be 4 letters in square variant:

+-----+-----+
| q w | e r |
| a s | d f |
+-----+-----+

where you press the square and select letter by moving 
upright/upleft/downright/downleft.

Any other ideas for nice and usable keyboards?

Regards

Radek