ColdFusion debug output is returned to Flex apps as part of the ResultEvent (as of beta 3 of CF 7.0.2). Of course, CF debugging must be enabled. This example does a simple text dump of returned debug information:
public function ResultHandler(event:ResultEvent):void
{
Alert.show(mx.utils.ObjectUtil.toString(event.message.headers));
}
The data is being returned for AMF requests, so I guess as long as Flash Remoting was being called then sure, other IDEs could get the data too.
But keep in mind that there is a simpler way. The special Dreamweaver support is just a custom debug handler, and you can create your own one just like it (or based on it) for any other IDE.
--- Ben