Object.bindProperties extension allows a source object's properties to be bound to a target object. Two-way updates b/w bound properties are supported. It'd be nice Object.bindProperties(target, source) supports source objects that are general Java bean objects. The usual bean-style properties (get/setFoo, isFoo) could be bound to a script object. For example, this would be useful for script engine embedders who would want to expose Java object's properties as global variables