For input i wold reccomend using Moakey by Samsung, it is what they use for their windows mobile phones in South Korea.
For seeing all the characters i would reccomend trying to find a gulim.tff font that is fully packed cab that basically completely replaces most of the windows mobile text in the system.
Ill try looking for this cab and will edit later
Edit:
Awesome, while researching i found a xda topic with a bunch of info for individual or multi asian language support. Have fun!! ^^
http://ip208-100-42-21.static.xda-de...d.php?t=633339