Per Tsubasa Inaba (Producer, SCEA Santa Monica) via PS Blog today:

Just when you were close to beating all your clear times on all 56 echochrome stages on your PSP, we have even more challenges (71% more) coming your way!

An expansion pack for EchoChrome is coming to the PSN on October 9th for $4.99.

You can almost double the fun of the original with an additional 40 new stages to master.

For those of you who don’t have the original version, not to worry. We have a bundle pack ready for you guys and gals too, so you can pick up the game and expansion pack all at once! More PlayStation 3 News...