I find it funny that people say "I will never buy... " OS5, for example. How the heck do you know how things are going to turn out?
Admittedly, talk of OS5 and even OS6 worries me a bit. Considering that even for the smallest of software design projects, the development roadmap tends to look something like 'features intended for the next release' (eg. OS4), and 'features intended beyond the next release' (eg. OS5 or later). A competitive modern OS is extremely complex, and not something to be thrown out of the window and 'started again'.
Although, I guess it is possible that AInc have access to the OS4 source code and made their own branch from the code. It seems to be a bit antagonistic towards Hyperion to say that in public though. To me it reads like "OS4 isn't particularly relevant".
I think I'm beyond caring particularly one way or another wrt Amiga anymore, as a great deal needs to happen to secure Amiga's future. I'd personally like to see an operating system which has the advantages of the AmigaOS of old, on a viable hardware platform, so I guess I'll just wait and see.
http://os4.hyperion-entertainment.biz/403. Hrm.