http://www.microsoft.com/visualstudio/en-us/lightswitch

Just downloaded the Beta 2 (released March 15th), and I have to say I'm pretty impressed. The included tools are pretty impressive. Still no built-in reporting capabilities though :(

It creates SilverLight applications which can be run as a stand-alone app or used in the browser. Supports local DB or Azure. In theory can run on a Mac and/or Linux or whatever OS has a silverlight runtime/browser plugin.

I have to say I think this thing is showing real promise. I always heard that Delphi was cool because it was both RAD and you could really get under the hood when you needed/wanted to... that's my impression of LightSwitch so far.

Anyone else playing with it?