Looks like the Japanese release date for Tales of Phantasia X (Tales of Phantasia Narikiri Dungeon X) was leaked today.
This means you can start porting it come August 5, according to AGB.
The Tales of Phantasia Narikiri Dungeon remake for PSP will include a remake of the original title, Tales of Phantasia.
The official website for the game is now live and teaser free, so you may wish to check that out as well.
No word yet on a western release, but one can hope.