Japan gets Echochrome in March

We've wanted to test our ability to solve some Escher-like puzzles since we first saw Echochrome. The date is drawing closer and closer for its release, with a March release in Japan. Maybe we're crazy, but we doubt there will be much localization to do for other countries so we'd think it'll show up shortly after the Japanese launch. The Japan-only PSP version of the game releases on March 19th, the same as the PSN title. Will the two be compatible in any way? Share puzzles? We'll see.