Download the speed test app yesterday and returned speeds of 0.46Mbps on Orange 3G. Went into Settings and changed the network to Orange-T-Mobile and it connected with 3G. Ran the speed test again and returned a speed of 7.55Mbps. Done several tests today at different places and Orange-T-Mobile is returning speeds of more than ten times that of just Orange. This only works when you manually select the network. If you choose automatic it puts me back to Orange and slow speeds. It seems that the network sharing in now for data and not just voice calls and texts. Shame it doesn't automatically switch you.