[ericand]

We used the device reader to unload code (and subsequently reloaded that code later). We found it worked well and was easy to use.

Our plan (never fully realized) was to archive a binary copies of "good" versions, after they had proven themselves by running in a robot. We have been burned on a few occasions by archiving out of the build (after testing on the robot) only to find out later that what we archived was not exactly what we had been testing. Either someone had made "just one little tweak" while we were off testing, or the person who did the archiving got a path a bit wrong and saved a different version than intended.

Saving the binary off the robot eliminates any chance of confusion. You save exactly what was running.