It's not still called MSN Messenger, though, is it?
All this talk of "MSN" relating to instant messaging and defending of Microsoft's branding of their IM client seems to be a bit pointless now.
I'm not surprised that the Dutch firm have renamed the product - haven't Microsoft re-branded Messenger as "Windows Live Messenger" and dropped the association with the letters "MSN" altogether? Just like,
MSN Search = Live Search,
MSN Passport = Windows Live ID,
MSN Hotmail = Windows Live Hotmail.
Only the portal/service provision retains the MSN branding and that's not what the product was locking.
Like the time that they tried to copyright the word "Windows", they've got just as little a chance with "Live".