There is something in a name, adding numbers isnt a way to show it.
Numbers can make a product feel old in comparison to something with a unique name.
Names like Dreamcast, Xbox 360, Gamecube, N64 etc to someone that doesnt know the age of those systems will believe there recent compared to a PS2 which is soon to be 3 numbers behind the current system.
I for one support creative names, it makes a system feel unique and special compared to lets say a iPhone 3 or Samsung S4 etc. Numbers are easy however it ages the previous models considerably and makes people believe you just need the latest one.
Anyway thats my take.