Anyone got an idea roughly how much 3G data the Sky Go app uses on O2? Say if I was watching a football match on Sky Sports 1? I'd like a rough idea so that if there's something on while I'm at work i can buy another chunk of data beforehand and not find it runs out!

Are we looking at around 10MB/minute? More or less?

Its 110 MB for 10 minutes it tells you in the FAQ in the skygo app.

ok, thanks