Wow. I just called HomeSeer. 3pm on a Saturday and no one is available (only a machine) and you can't leave a message. I might just be waiting for Apple to come out with a home control product. If they can't afford to put a sales person on support on a Saturday afternoon, they may not be financially viable going forward.
Our systems include a built-in webserver that allows home owners to connect directly to the system. Other companies usually offer a hosted solution for this. There are no monthly fees; only an "optional" service for DDNS (MyHomeSeer-Connect). This service is a convenience for anyone who does not wish to mess with free DDNS providers. We leave this up to the user.
If you have any specific questions or would like to talk to a rep directly, please don't hesiate to call or write.