I've posted a few quick lines, since receiving the TREG unit last week. I've now used the textblade a bit more seriously, both on an ipad and on a macbook.
Overall, the feel is great. Going back and forth between the textblade and my mac keyboard is pretty easy. But, on the mac, I'm a sloppy 7-8 finger typist, with some bad habits. On the textblade, one really needs to be a bit more careful, keeping the fingers on the home row, and using the correct fingers to type.
To help me with this, I've been practicing on typing apps, some of which have been mentioned in earlier posts. For example, keybr.com, a mac app called typist, and another called Master Key. I like the latter, but the free version puts in increasing 'wait loops' as you continue to use it. Just as with learning almost anything, concentrated bursts of 30 mins of practice build up competence quickly.
With the typing apps, I now use the correct finger for each of the alpha keys. I'm still practicing with the shift keys for caps. Some treggers suggest using the sticky-key for shift and always using the same side. I think I prefer the classical hold down shift, on the correct (that is, opposite from letter) side. I have not yet practiced the green key characters, other than ; and :, which are easy to reach green keys. I will slowly expand my typing training app to include characters, numbers, etc.
I am also getting used to the select and edit modes. These are very easy and intuitive. Indeed, as Mark has mentioned, much effort has gone into placement of edits keys, modifier keys, special characters, etc, to make them conform to standards or to match visual mnemonics. One of the added benefits of the long conversations with Mark (2 sessions of 2 hours), is that I now remember well all the features he talked about, because my memory links the keyboard, the keys, and his story of how the design choices were made. Mark has left his marks in my memory palace (if this is obscure, look up 'memory palace' in google. These are places in your mind to permanently store things. Very handy for learning and remembering lists of new features on a keyboard.)
So far, I have not really run into any persistent problems. I notice that people notice the textblade, when I'm at a cafe, in the airport lounge, basically anywhere out in the wild. Some people gawk, but every place, at least one person backtracks and asks me for the name of the device. Given my enthusiasm for this 'thing', I then spend a few minutes on a sales pitch. I can really recommend the textblade to anyone.
I do wish all customers will get their textblade soon. And, I hope that on Monday, you will all receive an update from Waytools on when yours will arrive.