Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
"Skyservant" is the name for the Do-28 only.
http://www.airliners.net/photo/Dorn...1628407/&sid=fc57127ff961cad0de99ee4595798bd3
Do-128, 228 or 328 have no names I'm aware of...