The Motorola V220. We bought one last year for our older daughter, on a pay-as-you-go tariff. It can play interesting sounds, take photos and so on, and it comes with a USB port. Cool!
Unfortunately, it doesn't come with any driver software, and a long search on the internet yielded nothing that would allow me to get anything off it or onto it. With the possible exception of a €40 piece of proprietary software made by somebody else.
Hello????????? If as a hardware manufacturer (yes, Motorola, that's you I'm talking about), you aren't going to provide an easy and intuitive means of using an interface, don't provide the interface!!