It is really exasperating that the desktop application only seems to allow current session file deletion.  Of course, maybe it is just me?  I launch the "new" version.  I do some work.  I delete files.  I turn off/unregister.  I return.  I launch the "new" software.  The file(s) is/are still on the device.

If I delete the file(s) after accessing the pogoplug at my.pogoplug.com the file is gone, really "gone/deleted" ...  I guess I am a little unsure why this particular weird sequence is necessary.  It seems to be a continuance of how file deletion works since the "old" software.