Yeah. There's a single connection on the monitor end. On the other, the cable splits into separate DVI, USB, FireWire, and power. That means there's still a "non-standard" cable required, but the ports on the other end are standard.
I just saw them, and they are stunning. The 20 looks like a midget compared to the 30. The thinner bezels make a difference. The 23 looks "normal". Unfortunately, you can't drive the 30 off a PowerBook.