Good question 
We are focusing on markets where we can give the complete local gaming experience (localized support, software, games, promotions, websites, media/affiliate marketing) and that requires a professional team of people who know the market and speaking the language as their mother tongue. So, until we’re able to get properly setup for Japan we won’t be working on providing Japanese software.
Also, we figured that German, Italian, Spainish and Italian are the most profitable markets to move into after the English speaking markets.
I strongly recommend that you check out All Jackpots new MLV MPV software – http://dwnl.alljackpots.com/dwlprepajv.php
Cheers, Lloyd