I'm on Vodafone in the UK with a 500mb/month data package. I've had the Desire for 18 months now, and although I've been happy with it, recently the data usage on mobile (3g etc) has been going through the roof. After doing a bit of research it appeared to be a bug with the OS when WiFi and mobile data were enabled simultaneously. So, last Friday before leaving the office WiFi goes off and mobile data comes on. During a 2 hour meal with friends the handset manages to consume 128mb of data! I have Traffic Monitor installed (as well as Traffic Counter to verify usage) which shows what apps are using data - to my surprise the process was com.google.uid.shared:10055. I've tried searching the net for this but little shows up... By comparison, Facebook was about 1mb and Twitter 500kb for the same period. I had installed Watchdog after a recommendation to catch rogue 'overactive' apps (set to 'conservative'), but nothing has been flagged so far. The OS background data is off, I use Easy Battery to disconnect data over mobile or WiFi when the screen is off to save battery life and supposedly keep data to a minimum when I'm not using the handset. It's kind of pointless having a device like this if I can't even enable data on the go, without the worry of blowing my data allowance on an OS process. Can anyone shed light on this?