So I just got my desire a few days ago & I'm pretty happy for the most part. I'm a little disappointed by the battery life & think that HTC should have given it a bigger battery, even if they had to make the phone a little bigger. The could have made the phone with a much higher capacity battery & still mate the phone much smaller than an iphone. But I digress. My question is whether other people who have the telstra version of the phone have had the same experience as me with wifi & mobile data. I don't play with my phone away from home much yet because I'm still waiting for the memory card that I ordered on ebay to arrive so I can put my audio on it. At home, when on wifi I have been downloading lots of apps & stuff. The phone indicates that I am on wifi, but when I check my mobile data the next day, I've used something like 300mb in the last 12 hours. I can't believe that I've used that much data on stuff like status updates & can only assume that I've been billed for my data when I'm on my wifi. Has anyone else experienced this?