In a nutshell: My voice-controlled home automation system was named ModernSteward (I'm stupid). The confusing part is: when you are giving a command, there should be a keyword. The keyword is Melissa, so you can say "Melissa, turn the lights on". Melissa is very catchy and since we have a lot of publicity with it, we are seeking for another name of the product. Obviously, "Melissa" is not OK, because melissa.com is registered. We were thinking about something like MelissaHome.com See the current website: http://modernsteward.com
The reality is, no matter what alternative domain you land on, you're going to have to buy it. I like the domain iMelissa.com, but of course, someone owns it.
What's more important for you is building more an audience/following. A short form product video is critical. The only videos I can find, take a full minute before I see "Melissa" do anything. Longer, before I see what the hardware/form-factor looks like. You would really benefit from a video like this one: http://www.indiegogo.com/projects/canary-the-first-smart-home-security-device-for-everyone
Something like that would be more shareable. You've had some nice press- but it's not very sharable- which might explain the small following you currently have on your social pages.
Hope that's helpful, would be happy to chat more.