I've made a notification bubble change to Aerofoil based on an idea from one user (sorry I haven't your name or original email anymore - email me again and I'll add it). Aerofoil now shows a notification bubble when Aero decides to change it's state or the power status changes. In addition, it sports a new modern looking icon and the code has been improved to cater with error states better and to ensure the correct menu options are always shown (something else may have changed Aero's state without an event being fired - such as hibernate/resume).
Final 1.4 version available here
You can download the update here or C# source code here