I upgraded from my Hero to the SGSII last week and I love the phone, but I noticed today that I've used 136.19MB of data. In the last 18 months I've barely come close to my 500MB monthly allowance so this is a big hit for just one day. I use 3G Watchdog (since getting the Hero), and having read some threads I've installed My Data Manager and TrafficStats Lite to monitor usage from here on, but does anyone know how I can find out retrospectively what apps used up my data today? 3GW only appears to show MB used and not what used it. I try to do most of my browsing, downloading and social network updates on the home wifi, and on checking 3GW since I started with the Samsung on 05/08, the most I have used in a day is 46.5MB. Ironically, I've hardly used my phone all day today - on 3G I checked a few emails. Last week I was hardly off the "new toy". Any help gratefully received.