You get the HTC Tattoo for free which costs £200 on pay as you go, cracking little phone - I think any phone with android on it is gonna be great though! Granted there is better phones out there but you wont get one wihh a free PS3 at this price, heres a reveiw of it...http://www.techradar.com/reviews/phones/mobile-phones/htc-tattoo-643691/review
And you also get a free 120 gig PS3 with one pad which costs £250! Was pretty much the reason I went for this, always wanted one but never had the cash but it feels like Im not paying for it as my phone contract before was the same price!
Its 25 a month plus VAT but that only works out as £528.75 over the 18 months which is just over the cost of the PS3 and the phone! BUT you can upgrade on Orange after 15 months I believe...
ALSO if you use quidco there is a chance of £40 cashback...http://www.quidco.com/dial-a-phone/
So after all of that you basically getting a phone contract for nothing really! And personally I only text and use facebook so its a great tarriff, the 100 mins is enough for phoning mates up for a minute to see where they are or whatever!!