This is a godsend for any plugin developer. The amount of time saved with the CustomUI suite is unimaginable. The quality of UI is also billions of miles ahead of what I could've made myself.
If anyone wants to see an example of this used on a plugin, I used it on ExpressionRouter to create a 17 tab structured plugin. This resource was great and helped make that possible. Thank you! :)
Will be giving this a try ASAP... we've def been lacking framework tools like this, to the point I've even considered writing one for the community. Love that you've beaten me to it!! :)