I think that one thing still remains constant throughout. Pretty obvious too really, they all feature AMIGA somwhere yep even printed (amiga) is still AMIGA. That's the name they bought. I have seen countless changes in Boing Balls, coloured checks, backgrounds 3d effects. It really doesn't matter. It's amazing, the common ground hasn't changed. They could have mind you. the name AMIGA carries 4 takeovers in it's name, not a most stable "tag" to prmote under. They could have changed the name and kept the OS, called it Zorro or something.
I have seen countless changes in Microsoft's windows
OS from Version 1 to now XP. Lots of disfferent backgrounds etc. Gee they even went as far as to completly re define the way it looks. Just look at win 3x to 9x then go xp it all changed.
I think it's irrelevent. I think They have remained very constant and to once again take the name AMIGA forward is not only a gutsy move (in light of it's history) but a smart one as lots of people KNOW what an AmIgA is no matter how it's printed. As a Mascot or side marketing logo, I still love the coloured check mark. A symbol of the AMIGAS roots as a very good Colour computer. :-)