I have an unlocked Desire on the 3 UK network, so this comes with no branding. However I want to install the My3 app that allows you to monitor your monthly usage. I already have 3G Watchdog which does a similar thing, but this won't tell me how many texts I have sent for example, so I want to have both apps on my phone. I have downloaded the Three app from the Market, but when I try to run it, it tells me I need to activate data roaming. I have had a look at the Desire user guide on the HTC web site, and this says the following: "Accessing data services while roaming may incur significant charges. Inquire about the data roaming tariffs with your mobile operator before enabling data roaming." Is this simply to warn you that if you are overseas you will get charged for data? What if I stay in the UK? Presumably I will only get my data from the 3 network - or from Orange if only 2G is available? And presumably this would be free? So is it safe for me to activate data roaming?