We will have Joonas Lehtinen, found of Vaadin, giving a presentation and lab on the Vaadin framework. For those of you who have no experience with Vaadin, it is a framework for building modern web applications and has a great selection of controls and widgets with expert design.

For registration and details, visit the NightHacking Labs site:
http://www.meetup.com/nighthacking/

Event time is local to California (PST), but here are some alternate timezones: