This is probably expected, but Canon Japan made an official announcement
on the delay of 8-15mm, 300mm, and 400mm:
http://cweb.canon.jp/ef/info/20110324/
The news release cites the damages to factories in the region as the reason.
No further release dates were given, so we'll just have to wait and see.
Update: more delays for Eos Kiss X50 (1100D) and related accessories - but only by a few days
http://cweb.canon.jp/camera/eosd/kissx5/info/20110324/
on the delay of 8-15mm, 300mm, and 400mm:
http://cweb.canon.jp/ef/info/20110324/
The news release cites the damages to factories in the region as the reason.
No further release dates were given, so we'll just have to wait and see.
Update: more delays for Eos Kiss X50 (1100D) and related accessories - but only by a few days
http://cweb.canon.jp/camera/eosd/kissx5/info/20110324/