It would be beneficial to include an option to disable the add-in splash screen. I'm not sure if this feature is already available, but it would enhance the user experience.
I have my doubts that ESRI's going to pass up any chance at advertising (even to existing customers), but I'm always in favor of an option to disable splash screens that delay productivity!
Thanks for using ArcGIS for AutoCAD! This requested functionality should be available in the next release, 435, around December/January time frame.
We also have a new live beta running that you are welcome to register for and try out. This specific functionality should be live on the beta in perhaps a month.
