Originally Posted by wong1234
Will he has to sign on amazon.com using my password for my account? If so, is there a way to limit him just to buy book for Kindle and not buy all sort of other stuff (like a high end camera) using my amazon account?
You don't need to give him your account password.
Because his Kindle is registered to your account, he can buy books directly on the Kindle without the password, so if he really can't get Whispernet then he won't be able to buy books at all.
Unless it's an older US-only Kindle though he probably will be able to get Whispernet in the UK. I think he can only things he will be able to buy directly from the Kindle are books.
If he can't get Whispernet in the UK and he needs to be able to get new books, maybe he could email you the link and get you to buy it?