I await the speed doubling, due in my area from July, but I have noticed that the upgrade in particular areas doesn't happen all at once. eg Some people have been getting their upload increased first, whilst others get the up speed doubled first. Some get converted to 8 channels down before upgrade whilst others get upgraded before conversion to 8 channels down.
I suggest giving it a while before you come to conclusions and be aware that some speed testers give weird upload results as well as download measures.
Virgin Media: 100mb/10Mb , land line, mobiles x2, TV - VIP HD box + TIVO 1Tb box.