Don I think the challenge here is that Wolfgang licenses the use of this data set (for money I assume) therefore many people who do not want to pay a fee use other datasets or start their own. There is now an OpenNGC project started because of this issue. So you will not find any of the free software using Wolfgangs data. As you are well aware there have been very few new programs released in the last few years and because of this even those that did use the corrected data from Wolfgang (which is not the same as the data from the NGC/IC project site for various legal and political reasons, at least currently) is both limited and not up-to-date. it is not clear to me at least when there will be any new software coming out. ST4 has been in the works for years and if/when it comes out will not be probably until 2018 at least and as noted even if Greg has updated his NGC/IC data to use the latest from NED he still has an issue with the whole corrected NGC/IC concept.