You might have heard that BizTalk 2010 has a neat feature that lets you create automatic links in maps either by name or by structures. Well, with little work you can have that in BizTalk 2009 and earlier. Kind of.
The main thing is, the map files (.btm) are compatible. So what you can do is copy/paste schemas in dummy BTS 2010 project, create a map, link records automatically and copy/paste new map in BTS 2009 project.
If you have big schemas this can be a real time saver. I just saved me some time, so I spent it on writing this post.