A RootsMagic GEDCOM does not include .....sentences from the Alternate name tag. I hope that this can be remedied in Version Eight.
Actually, I hope that there is a rather more substantial improvement for RM in this area. RM's back end database supports sources, media, and a note for Alternate Names and also for the "main" name. The back end data structure is no different for the two kinds of names. The RM front end user interface supports sources, media, and a note for Alternate Names but not for the "main" name. A much better approach would simply be to support multiple names, all of which support sources, media, and a note, and one of which would be marked as primary for reporting purposes. It should be easy to change which name is marked as primary. Then, all of this name data should be included in GEDCOM export. And then, RM's direct import for FTM and RM's ancestry interface via TreeShare could include all this name data. It would be a win-win-win-win type of situation for RM users, GedSite users, FTM users who wish to convert to RM, and TreeShare users.