Short answer: be careful of this. VOIP over cellular is pretty flaky at the moment, you really need a solid WiFi connection to make it work. It's also not necessarily data efficient so you might find the data bill on 3G roaming costs more than calls.
There are some solutions to this problem coming but I don't think they're going to launch this year.
Moving a SIM card is easy pretty much on any network except Orange who lock their phones. Unlocking the phone can be done pretty much anywhere for about ten quid, do don't get too hung up about it.
The Sony Ericsson X1 is a sweet looking device and I'm hearing generally good things about the quality so far. Ask me again in a few weeks. It'll be in the UK with Vodafone.
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There are some solutions to this problem coming but I don't think they're going to launch this year.
Moving a SIM card is easy pretty much on any network except Orange who lock their phones. Unlocking the phone can be done pretty much anywhere for about ten quid, do don't get too hung up about it.
The Sony Ericsson X1 is a sweet looking device and I'm hearing generally good things about the quality so far. Ask me again in a few weeks. It'll be in the UK with Vodafone.