Seventy-three seconds into the flight, as the spacecraft began an expected roll, the forces on the solid rocket motors began to pull one of them apart.

NPR: Challenger: Reporting a Disaster's Cold, Hard Facts

We got to briefly chat with Transporter's makers, and they told us that while the Transporter hardware is ready to roll and its web portal is solid, the desktop application still has some kinks to be worked out.

ENGADGET: Hands-on with Transporter, the peer-to-peer social storage solution