Keypad for fingers, not stylus

Lorn Potter lpotter at
Wed Oct 10 09:04:25 CEST 2007

Openmoko wrote:
> Hi,
> I've started a little project: to make a keypad where it's not required to
> use the stylus, i.e. the fingers should be used instead.
> The plan is to make an alternative to the matchbox keyboard so that the new
> keypad can be used both in terminal, for texting etc.
> So far I've only implemented the very basics, e.g. to write a "c" three
> pushed on one butten is required. I've also plans for implementing a
> dictionary, e.g. T-9 or an alternative: the most common words appear based
> on the already entered letters (if "ba" entered manually by pressing a
> sequence such as (22,22,2) then the phone should propose for example
> "banana").
> I'm already thinking about the data structures, search algorithms etc., but
> I'm really not that sharp at C (only at C# ;-)), so it would be great if
> someone would participate in especially that part (which also includes to
> compile it to ARM and not just x86). I've submitted an application at
>, but haven't got an answer yet.
> I couldn't attach the code for some reason (the mail did apparently not go
> through mailman), but if you're interested, I can just mail it directly.
> Please feel free to comment ideas etc.!

You should take a look at the 'PredictiveKeyboard' in Qtopia. Once you 
know how to use it, it is very good and can easily be used with a finger.

Lorn 'ljp' Potter
Software Engineer, Systems Group, MES, Trolltech

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