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.

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.