Sure, it's hard to imagine a reason for most people to pick up a DMP-B15 over a cheapish Blu-ray playing laptop -- the thing is monstrously thick, and can't even handle a traditional laptop-style screen orientation, only everything but -- but the hardware is reliable enough for kids to handle on the road, and the single-use makes it a good home Blu-ray player for plugging into that second HD-starved TV.
ENGADGET: Panasonic DMP-B15 hands-on Hands-on