Gaia Ajax Widgets is gaining in popularity lately with around 1000 registered users by April 23rd, for a project that was live since February 5th only. Frost innovation joined today the Dual License world; a model adopted by many companies such MySQL, Trolltech, eZ Publish (The last ones are also from Norway). The next big thing for Gaia will be "GLAM Stack" (Gaia Linux Apache Mono...) which will introduce Mono support and of course become cross-platform. For more details check their website http://ajaxwidgets.com.
Gaia Ajax Widgets, Released, GPL, License, Ajax, .NET, MySQL