iPhone 33GS activation and overseas

Hi

I have a major problem with my iPhone 3GS. Never had a problem until now

It's on the latest firmware

I'm currently in venice Italy and after i had put my phone onto charge

I checked it after 30 min and noticed the apple logo was on the phone and had to force shut down the phone to get it to go past this screen

Now the phone wants to re-activate and trlls me to plug the phone to itunes

but I'm unable to find a pc with iTunes as there is no apple store where I am and not for another 2 weeks

What can I do? I'm in urgent need to use my phone. I'm lucky enough I have my iPad but I do need the phone when I'm in remote areas