Magical disappearing trips (from iCals)

Hi,

I may be missing something, but I had an imported iCal trip last weekend that I can no longer find. My journal says, regarding this trip, "We imported a trip (since deleted) from an external calendar."

This seems like a problem, especially given your super awesome carbon calculator working on the basis of old trips. (I noticed this while trying out the calculator.)

Suggested behavior for trips imported from iCals: Once the trip starts, disconnect it from the iCal so that when it goes into the past and disappears from the iCal, it doesn't disappear from Dopplr.

Thanks for the great site!