Android phones, apps and tablets

I'm waiting until back in the city, then will likely try this funky new tech with a prepay sim at home and work. If great success do full purchase.

That's what I did with ThreeUK.

Bought £10 PAYG SIM cards from every network, tried them all for 1 day each, testing home and work signal and also the train commute and cycle commute routes (train in, Brompton home).

In London Three actually came out best everywhere except when at Barnes train station.

Vodafone were second, O2 third, and EE came last.

I didn't bother testing GiffGaff and the like as those are virtual operators that piggy back on one of the other networks.

Also checked http://opensignal.com/ to confirm that Three UK would actually work in Exeter, Bristol, etc.

Pretty happy with Three, and that it had unlimited data was a big bonus.

A few people I've spoken to said that Three sucked big time for them, with no reception at their work place, etc. But this is all radio based and all networks have holes somewhere. Pick the one that works for you.