The word from Jungle Jets is that SWISS want to postpone delivery of the four resheduled 170s they were due to get in 2004 to 'some time in the future' - they aren't worried by this because they can/have already place/placed the build slots with other customers. To be honest I don't think it's likely SWISS (So What It's Still Swissair) will live long enough to get the aircraft due in 2005... sad that....
BTW Jungle Jet data shows that the 170 has met performance predictions and I have to say I was pretty impressed with it when I flew one couple of weeks back..