I am going to Europe (I begin in London) and I would like to rent a mobile phone that I can take with me throughout my travels and return at my end point (London)
I think you can take your own mobile phone and purchase a SIM card there. At least you can do that in Asia.
I believe there is a place in Heathrow that rents mobile phones. I was lucky that my provider here in the US rents them so that anyone who calls my regular mobile phone is forwarded to that number, and all incoming calls to me were free. It's so worth it to have a phone with you--mainly for security, but also because those charming red phone booths often smell of urine!
Oh ok you reposted, lol. This is the second time I've seen a question about renting mobile phones and I can honestly say I've never even heard of the concept. I don't think you can rent mobile phones, not in the UK anyway. The best thing for you to do is to buy a cheap prepay mobile phone for about ?30 in London, put ?10-20 credit on it and that should last you for your trip. You will be able to use it to roam throughout Europe, I recommend you buy one on the O2 network.
