Thats damn good news. Lets hope it becomes permanent.
If Sky get their way they would fragment the terrestrial market by forcing people to pay for their custom equipment. I've no doubt that this would recieve freeview stuff ok but the present freeview boxes would definately not be able to get Sky's offering.
Sky would also likely subsidise equipment cost (no doubt by forcing you to connect to a telephone line for a year) and may even provide it free to build market share thus increasing their market share and ultimately dominating terrestrial TV.