as to data usage in my work the apn definatly makes a differenc and telstra.internet has the least latency etc, we have done extensive testing also the .iph pipe is also heavily throttlred. the telstra.internet pipe is much much more stable...again from real world serios testing. i work in broadcast and this area has been tested by most of us broadcast engineers. i found the euro image has less crap and as mentioned you have full access to the apn area....wow just noted how long i have been a member here

this is all anecdotal realworld testing