This map shows the signal strength levels of various places around the UK from data contributed by Twitter users using the #iPhone3GTest tag as started
Tweet the hashtag #iPhone3GTest with the first half of your postcode, your Operator, your 3G signal, and how many bars of signal you have e.g. Glasgow G12 O2 3G 5 bars and we will map your response. Remember to include your postcode or your tweet will not be shown!
Or use our handy link to post your very own signal strength tweet: