I don't know how much this matters but there is no profile for "Desire" on an official HTC site but there is a profile for "Bravo" and "Legend" and "NexusOne".
Nexus One profile:
Desire profile? (404)
There are other U.S. only phones that don't seem to have profiles on this site, like the Diamond and Touch HD, but the Bravo/Desire specs are euro and all HTC euro phones seem to have profiles.
Conclusion: Bravo is still HTC's internal codename for the device and how the device identifies it self in MMS.