cool securing tool for kids on the internet

I just saw a commercial for the Fisher Price Easy Link Internet Launch Pad, targeted for children three and up. The Easy Link -- a specialized USB peripheral with its own software -- allows children to explore sites dedicated to characters when they plug a figure of that character, like Elmo, into the Launch Pad. The kids are offered links to read and games to play, and nothing more -- there is no access to the Internet or to the hard drive and any of its applications without a password. It's $30, which is a reasonable price to introduce kids to working with a computer while limited their access to anything they can damage or can harm them.

And yes, kids that young do use computers. I remember watching my cousin's daughter playing computer games when she was four. But of course, both her parents are software engineers.