The chembldb SAR data and an initial front end is now available (see earlier posts), over the next few months we will be making quite a few changes to the data, the database, and so forth. Most excitingly, there is a large bolus of 'new' data to add. Most of the changes we make will be evolutionary, but there will be a few major things as well.
With this in mind, please mail us if you are building any systems that rely on the data, this way we can tell you in advance specifically what we are intending to do, and secondly, you could request features, cross-references, and so forth that could make your life so much easier.
I can't remember where I found the image above, but it is a little bit funny, for those of us that travel in economy/coach.