according to Portlandmaine.com:

BrickUniverse is the Ultimate LEGO® fan event coming to Portland, ME, April 29-30.
Experience awesome LEGO® attractions built to inspire, educate, and entertain. This fun, family-friendly event will have tons of amazing LEGO® creations, building zones, vendors selling the latest LEGO® sets, mini-figures, and accessories, and more! For more info, go to www.BrickUniverseUSA.com