I am getting the type of crash described here, and have been getting them for a few months now.
It happens randomly, but it always happens when command-clicking a link to open it in a new tab - it immediately crashes. Supposedly the crash reports have been sent to the Orion team, so I am assuming there is an ongoing investigation.
This is the only thing that happens often enough to remind me that it's not yet a "mature" browser: I will be very hapy if this is ever fixed.