iPhone stopped working for no reason

Hi,

Need some help.

I have had an iPhone now for a year, and it has just completly stopped working. It hasn't been dropped or had anything spilt on it. I have phone Orange twice now and they have gone through plugging it into iTunes and both times it did nothing except for the little apple sign to come on for approx. 20 seconds then go off.

Orange have now told me the phone is basically dead and there is nothing I can do as its now out of warranty 😟 and I can't upgrade until May 2012!!

Does anyone have any advice as to how I can get the phone working?