OK, so I saw MoSync 2.6 on your site today. Congratulations! :-)
I just tried to run the NativeUIDemo, pointed MoSync to my android-sdk folder, and it immediately ran the only device profile I had setup under a separate Eclipse install recently. The problem is the emulator I setup was running Android 3.2 at a tablet resolution and the demo app forced closed.
I then went into Eclipse and the AVD editor and created an Android 2.1 device profile. I closed and restarted MoSync and it still started the Honeycomb profile. I see that is runs "/Applications/Coding/android-sdk/tools/emulator -avd HoneycombTablet". Where can I edit the "HoneycombTablet" portion of the call?
Thanks,
Brian