It's currently not possible to use both Moto 360 and +Google Glass for notifications - it's one or the other. And switching is pretty clunky.
It looks like Glass is acting as an Android Wear device, and as such, can't coincide with the Moto 360. It's either one or the other, and switching between the two is going to be really painful.
This must be a limitation of Android Wear, and a very shortsighted one at that. Did Google really expect people to only have one wearable device ever?
What's strange is that MyGlass and Android Wear show up as seperate services in the Notification Permissions settings, but it's clear that Glass is taking over and acting as a Wear device, thereby blocking out the Moto 360 or whatever watch you have.
I really hope this can be fixed soon. This feature is all but useless with this limitation in place..