Martian LifeBoat 1.0.1 - Popular Pick Clean

Martian LifeBoat is an application that makes keeping up-to-date backups as simple as plugging in a USB Flash Drive.

With LifeBoat, users define "LifeBoats", sets of files and
folders that get backed up each time a particular removable media
device (USB Flash Drive or External Hard Disk) is connected to their
computer. The instant the specified device is plugged into
the Mac, Martian LifeBoat automatically begins the backup process.

Users can then disconnect their updated LifeBoats and store them away
for safekeeping. Keeping the backups up-to-date just requires
plugging the device back into the Mac. Martian LifeBoat takes over
from there, quickly updating the external device with a fresh copy of
the users' most important data.