cyril wrote:Added in the latest 
beta. Can you test?
 
I'm sorry. I forget something
missing
in button 10 please add ่ ้ ็ ๊ ์ ฯ ๆ    (old  ั ิ ี ึ ื ุ ู )  ->   ุ  ู  ่  ั  ้  ิ  ี  ื  ึ  ็  ๊  ์  ๆ   ฯ   
in button 0   please add   ะ า                      ( old เ แ โ ไ ใ ำ )      ->       เ แ โ ใ ไ ะ  า ำ   
button 4      add    ฒ         ->  ฎ ฏ ฐ ฑ ฒ  ณ 
button 1      Delete  ฃ  ฅ    ->   ก ข ค  
button 1 have ก ข ค  
button 2 have ฆ ง จ ฉ
button 3 have ช ซ ฌ  ญ   
button 4 have ฎ ฏ ฐ ฑ ฒ  ณ  
button 5 have ด ต ถ ท ธ
button 6 have น บ ป ผ ฝ
button 7 have พ ฟ ภ ม ย
button 8 have ร ฤ ล ว ศ ษ
button 9 have ส ห ฬ อ ฮ 
button 0 have เ แ โ ใ ไ ะ  า ำ  
button 11 it seem space bar
button 10  have ุ  ู  ่  ั  ้  ิ  ี  ื  ึ  ็  ๊  ์  ๆ   ฯ  or  I suggest for thai symbool Layout

I edit image for example.
pic 1 it normol layout Thai T9
pic 2 When press ัิี  button layout switch to pic 2    if press กขค Button switch to pic 1 and press 1/2 button layout switch to pic 3 
pic 3 When press  2/2 button in pic 3  layout switch to pic 2 and press กขค Button switch to pic 1
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Word suggestion
see pic 1 Example I'd like to key  'กล'  i click กขค button 1 time i get ก and i click รฤล  button 3 time to get ล
I'm not sure word suggestion T9 not work or Cyril create like this.
In English language if i want 'test' i click tuv button 1 time click def button 1time click pqrs button 1 time and click tuv button 1time
just 1 time/button word suggestion show 'test'  but thai language is not same english.
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 please fix it.
Thanks
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I have .apk samsung keyboard (from android 2.1-update) but can't install in froyo i think that it will be useful
Link >> 
http://www.mediafire.com/?f8khjx5523geuq7