JBoss was successful but Redhat was not successful in merging JBoss into it self.
it looks the problem is in difference in marketing strategies of two companies.

In my opinion, Redhat has bought JBoss, to attract Java developers to its linux platform,
and it has not special interest about JBoss products.

historically lots of mergers and acuisations have failed in IT industray, examples are:
HP and Compaq
Borland and Ashtontate (DBASE)
IBM and Lotus
I hope JBoss doesn't fall into same category.