I have just installed the new Homegate V4 and realized after that a dongle is now required. Can you answer the following questions for me: 1. is there an upgrade cost for the dongle or V4? 2. I am using a tablet pc (wall mounted) to run Homegate currently. Does this mean I now have to have a dongle sticking out of the tablet PC for it to work? 3. why would anyone introduce old technology such as a dongle? Most software developers eliminated dongles years ago. There are some nice new features in 4.0 but maybe I need to go without these and stick to 3.9. Dirk