I've used Data Hand on and off for about 18 months now, and I feel that it helps. Its mouse replacement is crappy, but I find that using the keyboard part alleviates the sharp pain I get in my fingertips, which indirectly but significantly helps the pain I get from using a regular mouse. The key is to learn keyboard shortcuts and cut down on mouse use. Use a browser like Opera which lets you surf exclusively using the keyboard.
Data Hand is not trivial to learn, and it takes weeks to get used to before you can start approaching your old productivity. When the alternative is chronic disability, however, I feel it has been worth it. Besides, remember that the keyboard layout is almost the same as on a flat keyboard, so a touch typist will be able to make use of his or her old skills.
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I've used Data Hand on and off for about 18 months now, and I feel that it helps. Its mouse replacement is crappy, but I find that using the keyboard part alleviates the sharp pain I get in my fingertips, which indirectly but significantly helps the pain I get from using a regular mouse. The key is to learn keyboard shortcuts and cut down on mouse use. Use a browser like Opera which lets you surf exclusively using the keyboard. Data Hand is not trivial to learn, and it takes weeks to get used to before you can start approaching your old productivity. When the alternative is chronic disability, however, I feel it has been worth it. Besides, remember that the keyboard layout is almost the same as on a flat keyboard, so a touch typist will be able to make use of his or her old skills.
What's more, it was written by trolls.