The presentations focus on 2 "kinds" of IT: developping and system. I only saw the dev-part (unfortunately, there's too little time to see everything) and some of their samples were very useful in every day life. It's perfect for practical tips about multiple aspects of .net, in a limited time.
Yes I know, it is a little Microsoft brainwashing (Microsoft's marketing people and partners are very present with all kinds of booths and gadgets), but all in all, if you go, you won't regret it.
Here's the link to their website : http://www.microsoft.com/belux/devitprodays
Hope to see you there!
PS: The food they offer is great !! ;-)
K