A court in Cologne, Germany has raised a serious blocking concern about the use of HomeSpots across Europe, and certainly the rest of Germany, deciding that Liberty Global’s Unitymedia has to get an opt-in for each of its Homespot owners. So far it has relied on an opt out process and prior opt-in attempts lead to only 5% or 10% service penetration. It has been well understood for some years now, ever since FON invented the idea of putting a second SSID on a home gateway, that if you have to get each user to say it’s okay, it makes the provision of Homespot services virtually impossible across a large country like Germany. Deutsche Telekom has tried it and ended…