I don't know if you can call it real Traveller though
* Ducks *
What I dislike about Mongoose's version of Traveller, as you already know, is the way things are being changed. You didn't do that with your Conan game line. You only added to the universe with stuff that one would think would already be there. For example, you haven't introduced gun powder or non-human races into the Conan universe (but yet, Mongoose makes like changes to the Traveller universe).
This is why I sing the praises of Conan. It's a fantastic game. I dislike the d20 game system, but the changes Mongoose made to it are brilliant. They're the changes I would have made (and some I hadn't even thought of) if I were in charge of making a d20 game set in Conan's universe.
This is why I love your Conan game (I've been very vocal about it), but dislike Mongoose's version of Traveller.
I'm hoping that your Hammer's Slammers will be more along the lines of Conan rather than Traveller.
If it is, I've found a new game to love.
BTW, I wouldn't call it "Traveller" at all. I'd call it the Hammers Slammers rpg. So, it uses the same game system--that doesn't bother me at all. I like 2d6. It's simple. And, Traveller, isn't a game system. It's a gaming universe (that's had several gaming systems applied to it, some better than others).
What I hope not happens is that I start seeing finger-nail sized disintegrator pistols or Star Trek-like transporters in Mongoose's Hammers Slammers game--things that shouldn't be there. If you do it like you've done with Conan, you've just earned yourself another fan.
Here's to looking forward to the book!