Bluetooth connection language

Hello,
my system language (OSX Lion 10.7.2) is italian. Why the connection message when I turn on my Apple Wireless Mouse is in english? (see the attached image)
I own the Apple Wireless Keyboard too, and the connection message in that case is correctly in italian.

Just a guess, but I'd imagine that the artwork has the English word "Connected" embedded within the image. This may actually be a bug in the OS. You may want to report the bug to Apple.