Apple Iphone 4 16GB Jailbroken ios 5.1.1 unlocked ?

Hi, I have a black iphone 4 for sale. I have just loaded the latest apple software on it which has just come out less than a few days ago. It has been jailbroken which can be put back to factory default specification if required. Jailbroken means that you can download apps for free and customise it without paying apple for it. Its black in colour and the screen is in mint condition and has a brand new screen cover on it. Its in very good condition. Its SIM free. I can demo this using an o2 and an orange sims. I dont want any scammers or will you post to Nigeria or anything like that. All I want is a cash sale with collection so that the buyer can see it working before making a decision on if you want to buy. Cash and collection only