So next week probably I will be getting my first ever iPhone and it will be my first ever smartphone too. I'm trying to find best possible smartphone data plan available but I'm not too keen on getting a contract (I'm buying sim-free iPhone4) however I might consider something like O2 Simplicity 12-months contract. I've done some research and I thought I might share it with you. Maybe someone will find it useful. Here are, what I think, best possible deals for iPhone users, O2 has to offer(max £25/month): Simplicity: £15/month (12 months contract): 300 min, Unlimited any network text, 500MB UK Data and Unlimited Wi-Fi (BT Openzone and the Cloud hotspots) £20/month (30-day rolling contract): 300 min Unlimited any network msg, 500MB UK Data and Unlimited Wi-Fi (BT Openzone and the Cloud hotspots) Pay&Go Text and Web(tariff) Top-up £10£14/month: 300 UK texts, 500MB UK data & unlimited Wi-Fi or Top-up £15£29/month: 500 UK texts, 500MB UK data & unlimited Wi-Fi with one of these Bolt Ons: Your Family Bolt On £7.50/month: Unlimited calls, texts and picture messaging between 5 O2 people. (This one is really cool if you've got friends and/or family in O2. Only one of you pay £7.50 and all five people get unlimited calls, texts and picture messages to everyone in the group) O2 Home 100 £9.99/month: 100 anyone, anytime minutes each month from chosen post code to UK fixed lines and all UK network mobiles. O2 Home 250 £4.99/month: 250 off peak minutes to fixed lines and other O2 mobiles each month from chosen postcode. Call 50 £7.99/month: 50 anyone, anytime minutes each month to UK fixed lines and all UK network mobiles. Pay&Go Favourite Place(tariff) Top-up £10/month and get 500 free minutes to O2 mobiles and standard UK landlines from your chosen postcode Top-up £15/month and get 1000 free minutes to O2 mobiles and standard UK landlines from your chosen postcode with one of these Bolt Ons: O2 Web £7.50/month: 500MB UK Data (no WiFi data) O2 Web & Wi-Fi £10/month: 1GB UK Data and Unlimited Wi-Fi For someone who doesn't understand how Bolt Ons work let me shortly explain: cost of your chosen Bolt On is deducted from your phone balance, so if you have topped up £15 and you're on Pay&Go Text and Web tariff with Family Bolt On - £7.50 is taken off your balance and you're left with £7.50 to spend on anything outside your allowances i.e. calls and/or text to other networks, international calls, etc. Hope this helps. If I made any errors and please feel free to point it out and I'll change it.