[kweks]

A much better alternative would be: http://www.knowroaming.com/

- It's a SIM Sticker that sticks onto your existing SIM - When you roam, it activates, and uses its networks (but you can disable it, as you wish) - Calls, SMS etc are available at very decent rates. - Data is available at very reasonable rates (10c - 25c per MB - this is amazing for roaming) - Coverage is very, very good. I worked my way through Turkey, Iran, Iraq, the stans, Asia, Australia, South America, Russia.. all with coverage.

Highly recommended, and not some dodgy service.

[Gustomaximus]

That sounds really interesting but how does it work? From the website I cant see how it switches off my SIM and goes to their network. I would be worried I end up with massive bill shock...and would I keep my number or need a new one?

If it works as promised that's a great product so the marketing profession in me is disappointed with the website.