Mega Man Zero Collection delayed in Japan

Capcom has terrible luck with handheld Mega Man compilations. Remember how a collection of the Game Boy Mega Man games was supposed to be released alongside the GameCube/PS2 Mega Man Anniversary Collection? Remember when that actually happened? (No, because it didn't.) Now the Japanese website for the DS Mega Man Zero Collection reveals that the game's April 22 release date in that region has been delayed to an unspecified date.

We've put in an inquiry with Capcom about whether this affects the "early summer" release date for North America. But if the company doesn't know when it'll release the game in Japan, the other dates would pretty much have to be up in the air as well.
[Via Protodude's Rockman Corner]