Cool. Nothing as major but I noticed if you hail a person while out in space and are over a planet (possibly gate too, can't remember) you can't click some of the chat option buttons. You have to click just near the top of some of the chat option buttons but I think the full button is being obscured by planet names or something. I was trying to deliver a parcel to someone in space but I couldn't and thought it was not allowed but later realised I could click the button just at the top of it. Chat options to the left were fine but the ones more to the right had the problem.
Also maybe having a Hail button top right where chat button appears would be good for consistancy but only a suggestion and not a major thing.