widgeon,
Yes, and precious little room yet for HC's ego!
Here is a short presentation that discusses the EGPWS, which is available on several helicopters. Although Sikorsky spent good money to help develop the helo rules, they claimed no part of the license so that it could be sold to all comers, since its features are so important to helos everywhere.
http://webpages.charter.net/nlappos/frame.htm