bottom line is you will get your stuff, he seems like a very stand up respected guy, and is not one to screw anyone over.
Having said that I hope Tom can take some light hearted advice, as I have seen many of these threads over the years here and HCS, and hate to see a good company get any kind of negative attention.
Tom, I understand your a very busy man, it means your business is doing well which is awesome, but it may be time to get a person to help you, or look at ways you can still communicate with customers for when your away (blackberry might solve this?), its hard to grow your business past a certain point doing it all by yourself. While you are promoting and expanding your product and brand which is good, I believe your taking for granted the loyalty of the customers you already have by leaving them without answers for so long, so often, to be honest its just not something you would expect to see from reputable business even though most of us know you are. Reputation is about the hardest thing to build and the easiest thing to lose, don't risk loosing yours for something as simple to fix as customer communication.