In case you might have missed it, our customer at Sync and Share NRW, Dr. Raimund Vogl, has written a blog about how he and his organization chose ownCloud for 500,000 sync and share users: Building an Inter-University Private Cloud with Open Source ownCloud, on Linux.com.
How cool is that!?
Vogl praises ownCloud for meeting all the needs of the NRW users as well as for being open source.