Day before yesterday I got a text message from O2 saying they were sending an update for my APN's to connect to 4g. I'm on a 3g tarrif so thought nothing of it. Next day, there was a config update for network settings which I applied. Am on the road for a couple of days and noticed 4g popping up here and there with some pretty respectable speeds.
Phoned O2 who said they've upgraded me for free to 4g which lets face it is very unlike them! Anyone else had this? Have they done it for all customers?