Running my Hero on Orange uk in one of the poorest signal strength areas of the country ( although Orange say it's good coverage here! ) I've just bought an aerial booster, the type that stick onto either side of the battery. Doesn't seem to have made any difference to it at all. Also, I find that unless I'm right outside of somewhere with Wi-Fi, I get a very poor strength signal on that too. Anyone found a good aerial booster for the Hero?