Looking for new impressions of NAVTechdays 2011 I found this new question and answer in the FAQ:

When is the next edition of this conference?

A new edition is planned this year.
Last year’s conference proved to be very successful, therefore we are not going to change the overall concept. Again it will be dedicated to Microsoft Dynamics NAV developers & consultants, offering lots of technical sessions and interaction with the Microsoft product team.

Please note these details in your agenda for NAV TechDays 2012:
Thursday 27 & Friday 28 September 2012
Metropolis Business & Communication Center, Antwerp (Belgium)

That are really great news and I am looking forward to it.