Hi, I've searched the forums and can't find an answer on this. I'm trying to set up Personal Hotspot on my iPhone 4 (IOS 5.0.1) on O2 in the UK. I'm on a regular pay monthly tariff. The "set up personal hotspot" button under Settings>Network just leads to a Safari error page saying "file not found". The O2 website doesn't seem to mention it at all. Anybody had any experience with this? Cheers.