Apple published an Mac OSX Lion sneak peak that includes a launchcer which "gives you instant access to your apps - iPad style". And this launcher is called [drums..... ] Launchpad.
Hmmm were have we heard of this before?
"Launchpad" is a registered trademark of Canonical Ltd.
A bug regarding this has been submitted to Launchpad and a comment states that the legal team is aware of this.
It will be interesting to see if Canonical will defend the Launchpad trademark and join the "everybody is suing everybody" club. And if so, will Apple sue back like they always do?