Over at Devlicio.us I'm blogging about my experiences developing an application for my Samsung Blackjack:

 
It's a Translation Dictionary with a Flashcard feature that supports multiple dictionaries, with the ability to create and more. Currently I'm packaging an English-French dictionary with over 16,000 Entries, and an English-Spanish dictionary with over 10,000.  There's over 1,000 Flashcards of common words in each Dictionary. Each term is hyperlinked when it appears in a definition. It's absolutely free and open source.

Here's a screenshot:

I'm going to blog about and release the dictionary loader with more dictionaries as soon as I can get some time. 

Downloading and Installation

"Translation Dictionary v 0.1" is optimized and designed for Windows Mobile.  Get it and the source code for the application it here: 

Translation Dictoinary v 0.1 Setup