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#1
Will WayTools' TextBlade make full-size Qwerty keyboards obsolete in mobile use? See this introduction: https://waytools.com/products/textblade/1/trailer

Will part of Jolla users switch to TextBlade? Will TOHKBD users start using TextBlade for fast typing on "mobile desktop"? What do you think?

I've not read the patent papers of WayTools and have not yet figured out all the functions of TextBlade, but perhaps this quotation of https://waytools.com/threads/blog/textblade-deeper-dive explains how a single key is used to replace 3 or 6 ordinary keys:
"MultiTouch Keys define TextBlade. The capacitive touch technology that made the iPhone possible is, for the first time, built into every physical key. Row upon row of 70+ plastic legacy keys have been simplified, and replaced by 8 ultra smart keys, powered by software intelligence that discerns user intent. The iPhone set a new standard for precise, responsive machines, and now physical keys are equal to it".
 

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#2
not probably so usable in real life. maybe if you have a desk for your phone or other place where put the keyboard.
 

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#3
It is like a Bluetooth keyboard, you need a flat surface to use. It is a lot less practical to use a Nokia N9 with Bluetooth keyboard than a Nokia N900, for example.
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#4
Agree about a flat surface to use.

A small collection of "miniature" hardware keyboards which could be used 'just as easily' (depends on opinion, use-case and such):

Telephone keypad

smallQWERTY
FrogPad, plagued with troubles

Stenography

Braille Buddy never got into mass production?

Braille VarioConnect
BraillePen Write
KeyMaestro Braille

Spike for iPhone

Thank you. Best wishes.
 

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#5
Not to forget...

Laser keyboard

Which, incidentally, does not need a flat surface to work
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#6
Thank you for your comments. Each of them has a point.
I see the TextBlade keyboard as an interesting innovation which enhances the use of mobile text entry, which can be categorized like this, for example:

(A) "2-thumb text entry on glass": virtual keyboard on touch screen. No desktop needed. Medium speed, looking at the key labels is essential. Quite prone to errors (hitting an adjacent key, no or poor "click and feel"). Examples: the virtual "2-thumb" keyboards of most smartphones and some tablets,

(B) "2-thumb text entry on physical keyboard". No desktop needed. Medium speed, looking at the key labels is essential., Less prone to errors than (A), thanks to 3D shape and tactile "click" of the keys. Examples: the virtual keyboards of most smartphones and tablets, Examples: TOHKBD for Jolla phone, Nokia N900, Nokia E7,

(C) "Physical QWERTY for 10-finger touch-typing". Mainly on desktop. Speed of typing: high, if the writing person has an acceptable touch-typing skill. There are only minor layout differences between the mobile, laptop and desktop Qwerty-keyboard variants. In most situations, you don'nt need to look at key labels. Less prone to errors than (A): eight fingers have their "home keys", each letter is entered with a standard finger movement, good tactile "click and feel". Examples: TextBlade, mechanical keyboard accessories for smartphones, full-size Qwerty keyoards of desktop and laptop computers.

(D) Other, "Non-Qwerty" keyboards, such as text entry on 12-key numeric keypad of phones, and chording keyboards. They require special skills: on them the touch-typing skill on stardard Qwerty keyboard cannot be reused.

Please note that here the "stardard Qwerty keyboards" comprise also their language or country specific layout variants, such as the Cyrillic, Greek, French (Azerty) and German (Qwertz) layout.

In the C.category, I see TextBlade as a promising innovation, if its claimed good features come true also in practice. It does not need to replace B-category keyboards, such as TOHKBD for Jolla. But it has potential to generate new product concepts. For example, if attached to an "Other Half" or a "back plate" of a smartphone or tablet, the TextBlade keyboard could work as an essential component of new kind of ultraminiature computers, which can replace the conventional Qwerty keyboards of laptops and some tablets (those of Microsoft Surface, etc).

Personally, I would like to see the TextBlade keyboard fixed to the "othert half" of a Jolla tablet or phone.
 
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