Last week I presented a talk on the PMI Belgium chapter event about "Challenges of introducing Scrum in corporate environments". You'll find the slideware of my talk here: http://www.pmscrum.com/pmi-slides-march9-2011
One of the hot topics in the chats I had with fellow project managers, during the reception after the event, was about the integration of Scrum projects in the corporation project portfolio reporting. According to these people that is one of the main show-stoppers of starting with agile project management (and Scrum) in big organizations.
It just happens to be that our products (pmprojectteam and pmscrum) perfectly support that :-)
If you want to know more about it; here is the blog post I wrote on this topic: