8 SIM Only Deals From £15 For Google's Nexus One

Meanwhile, 3 Networks offers a rather unique package which includes free Skype, unlimited 3-to-3 calls and Windows Live messenger chat. For £15, prospective customers also get free Internet, free texts and 300 minutes.

Talktalk's has two slightly more intriguing deals. The first one is a straight forward one month deal called SIMpletalker with 400 minutes and 400 texts plus free voicemail and unlimited mobile internet for £15 per month. 

Even more interesting is their corresponding two year contract that is packed with 300 minutes, 300 texts and unlimited mobile internet with another mobile phone.

Choosing the Nokia 2330 for example gives you a Nintendo DS Lite console. Even if it is a very long contract, it might be worth it, especially as you get a secondary phone.

Virgin Mobile's Liberty Sim is potentially the worse of the lot with 300 minutes, unlimited texts and unlimited internet for £18 with a 30-day rolling contract. That's £3 more expensive than three.

We published the ultimate mobile UK SIM Only comparison guide with 58 offers on eight networks back in June and since then, things haven't really changed.