I love this idea, I want to do it. However, the biggest thing missing that I see here is the ability to a) tell you what timezone I'm in and what (approximate)

I love this idea, I want to do it. However, the biggest thing missing that I see here is the ability to a) tell you what timezone I'm in and what (approximate) time(s) I'd prefer the call to be made at; and b) leave a short note with additional information that will help you make the call. For example I would consider getting this for my business partner because I think it would make him laugh, but I would want to tell you to call around 9:30 am EST and explain that he's my business partner and that if he asks why the heck you're calling him, to just say that his employees think he's super.