Which carrier would you recommend for getting a prepaid sim card for my phone? We'll be visiting Edinburgh for 4 days and London for 10. My phone model is a US T-mobile Galaxy S ( …xda-developers.com/wiki/…SGH-T959 ) which is unlocked and rooted. I used it in Italy last year on Wind Wireless and it worked fine on 3G speeds, so I assume it will also work in the UK on most carriers?
I'm probably going to drop by Carphone Warehouse in Saint James Centre after we arrive near where we're staying (is that the best store to visit?). I'm mostly interested in getting a GB+ of data for a reasonable price (maybe £30 or £40 if possible). Perhaps being able to make a few calls in the UK would be a bonus, but I probably wont have much voice usage.
I also intend to tether my Android tablet to my phone on occasion if no reliable wifi is nearby (and I find hotels often don't have reliable wifi, even when they claim they do).
Thanks for any advice, especially as a recent poster seemed he didn't get what he wanted when he was choosing PAYG plans.