What really seems to be missing with MyHouse is the ability to setup a username/password combination that links itself automatically to a system ID. This should only need to be done once. It is too cumbersome to remember the system ID. I realize that this would limit the username base but, that is how it has to work.
It is very dangerous to leave the password/username/system ID information on a client. This should be a top priority fix as this is a major security issue. I know that the information can be deleted manually but, it shouldn't be a burden on the user to have to go through all these hoops. A simple username mapped to a system ID and password really shouldn't be all that difficult to do.