Lightswitch ( http://www.microsoft.com/visualstudio/en-us/lightswitch http://www.microsoft.com/visualstudio/en-us/lightswitch ) also seems to be aimed at the so

Lightswitch ( http://www.microsoft.com/visualstudio/en-us/lightswitch http://www.microsoft.com/visualstudio/en-us/lightswitch ) also seems to be aimed at the sort of thing you describe. RAD, but providing a solid MS architecture in the background. Have you looked at it yet?