It's been all over the news. What does it mean? For now absolutely nothing, as the Business Plan for 2007 & 2008 remains unchanged, as well as the product roadmap.
In the long run though, it means Tridion just graduated from an European small WCM player - with a lot of potential as recognized by most analysts - to become part of a huge services and software group (over 1500 employees) with loads of experience on globalization and localization needs - from web sites to software tools.
Time will tell, but I expect Tridion to finally start emerging and becoming a much bigger player.