Oh, I don't know that we are all that fragmented.
Many software packages are ported across all three NG OS'.
And at least one MorphOS developer (Fab) has ported his work to the competition's platform.
As to any hostility that might exist, I don't think MorphOS users are actively hostile to AOS4.1 users.
There's just some lingering pains over some statements made in the past by Hyperion's management and contracted developers (which is funny because I use MorphOS to run their ports of QuakeII and Heretic).
Anyway, the bigger the base the better, so I'm open to anything.
Heck, I'm even considering building a 4000 to get back to legacy software.
Oh, and takemehomegrandma may have some strongly held opinions (which I occasionally disagree with), but he's a pretty sharp dude.