Sorry but Xbox 1080 is much to long a name for snappy marketing... no way in hell that will be the name... same for 720... they don´t sound right...
X-Box-ten-eigh-ty... thats five sylablles, far to long... and people would start calling it the thousandeighty... which sounds horrible... try making a appealing comercial with that... no chance... consoles need short names that are easy to remember... if I had any say in it I´d suggest:
X-Brain
Xbox evolution
Xbox 360 reverse + nosegrind
Xbox: Return of the RRod (at least it would prove they have humor)
Pimp-Box
Xball (it hovers over the ground)
PSsucksbox (a little to agressive)
Xii