The Haier Black Pearl is honestly the smallest phone we've ever seen. It's hard to get a sense of how small it is from the picture, but you can see that it's about the length and width of two of my fingers, and around the thickness of one of my fingers on end. And I don't have large hands.
To recap: the BP is an unlocked GSM phone with MP3 playback, FM radio and Bluetooth compatibility. It's shiny—shinier than an iPod—and very very round. Take a look at the gallery and we'll have a full review for you later this week.
Product Page (Kinda) [Black Pearl]