You can translate the world with LingvoSoft!
LingvoSoft English-Thai Talking Dictionary 2006 is a free to try software. You can free download and try it for an evaluation period.
LingvoSoft Talking Dictionary English <-> Thai for Pocket PC
This LingvoSoft Talking English Thai Dictionary is an extensive language resource. It features a searchable database of 400,000 words and phrases. Each entry provides several lexical meaning for all polysemantic words.
LingvoSoft Talking Dictionary English Thai for Palm OS
This clever English Thai dictionary (about 400 000 words/phrases) translates both ways plus it yields English speech synthesis. Once installed on your device it will allow your Palm to speak any entered English word or phrase.
LingvoSoft Dictionary English <-> Thai for Pocket PC
This LingvoSoft Dictionary English Thai for Pocket PC with 400.000 words, built to operate on mobile devices running the Pocket PC platform, is a full-featured dictionary that is always ready to go when you are.