Seems to be very little info on this, and having the wrist pain I do, I'd like to know more:
- How does it feel in the hand compared to, say, an xbox controller ?
- Layout is somewhat different from a regular keyboard, how long are we talking to re-learn ? I've been typing QWERTY ever since i've had a computer
- How does one scroll with it ? I see a trackball, but no scroll functions
- I type on a normal keyboard at about 90wpm, what can I expect after some learning with the alphagrip ?
- How do the keys feel ?
The learning curve I've seen with Alphagrip is dependent on the person. I took to it quickly, but two people I know are much more moderate. One only uses it at night surfing the web, and the other only uses it occasionally.
As far as the layout, I can't help you, I use a Kinesis Advantage keyboard and type with the Colemak layout. I'm not a good example for you to use
Scrolling: There are a few ways to scroll. Press green shift and C-up/L-down. There is page up/down and left/right with red shift R and K. You use the red or the green shift keys.
I don't check my speed with anything, so I can't tell you other than to say Alphagrip is not a the fastest way to input key strokes. Several people on the forums have indicated they are around 60wpm.
It is said the keys are about 55 grams, but they feel lighter. They are not clicky.
It is very solid, you can throw it, it's that tough.
I had gotten several of theses for the mods I was going to do. But I sold one, still have one for sale, and going to add programming and wireless all to one unit.