Forget Wi-Fi exists for just a second, as all I'm wondering about here is Mobile Internet (i.e. the 3G/HSDPA) I wondered if there was a way of configuring the phone (without downloading a separate app) so that it only went onto the mobile internet when it was needed (i.e. every hour or so when apps were due to sync, or when I opened the browser). This must be possible because I have two access points stored on my phone (T-Mobile Internet and T-Mobile Picture Message). The latter will only jump onto the internet when I receive a picture message, and will switch off straight away afterwards (same when I send one). So surely there's a way of configuring mobile internet to do the same. Any ideas? I would be grateful for any points.