Customers on T-Mobile's pre-paid GoSmart tariff can now access Facebook, without the need for a data plan.
Virgin Media is now offering BlackBerry handsets on pay-as-you-go deals, including the BlackBerry Torch 9800.
O2 has followed Vodafone's lead and begun offering the iPhone 4 on pay as you go deals, albeit at a slightly higher price point.
Vodafone has announced it will be stocking the new Nokia C3 phone on an exclusive pay as you go deal.
Pay as you go USB modems really are handy bits of kit, if you want to have something in your bag to ensure you can always get online, but you don't want to have to be roped into expensive contracts.
O2 releases details on iPhone 3G Pay & Go - £350 for 8GB model, £400 for 16GB model, out 16th September.