Bad call on the name, guys. There's already a project using the name "Hermes" that is related to messaging.[1] Granted, it's JMS specific, but the domains are close enough for it to be confusing.
Hermes is also the name of a Greek messenger god so potential users of both products (the Mount Olympus IT department, for instance) are likely to be confused.
Seriously, though, it's a really obvious name for a messaging-related project and I don't think Hermes JMS is big enough to have a monopoly on it.