CartoLogic just released CartoView, it features:
Check out the demos and learn more about CartoViews.
According to Kamal at the CartoView forum, the licence is LGPL:
"Re: What Licence is for Cartoview?
Our license is LGPL, you should refer to the licenses of Google Maps API, Google Earth API, OpenLayers and ExtJs".
Re: CartoView - fast, free and extensible web mapping ...
Anyone know what licence CartoView is published under? Could not find this information on their website, nor in the download. Weird.... However, very impressive API.