if.. if.. if...... believe me, id prefer the same like you but neither from os4 nor mos camp there is enough good will to synchronize.
Perhaps you have a distorted view because Chris is trying to help and he even performed changes in his code to make it easier to adapt to OS3.x. Itix and Fab are always helpful, Fab for example always helps porting his apps to other OSes like AROS and OS4.x. Put some lines of classic amiga code and Piru will always help to optimize and iron out bugs. I don't think Kas1e doesn't have good will helping OS3.x users. But keep in mind they already did a choice and you can't force them to compile code for OS3.x specially if they no longer use these systems.
aros and genuine amiga people (68k) would come along but usually lack skills.
Until Jason and Toni Willen there were quite a lot of users who didn't care much about 68k nor compatibility with it.
and when you complain about bernd, id prefer he renamed the lib, but since he didnt everybody is free to resign on soft compiled against it and stay with 48.x (already a trouble). i myself always tried to go for libnix first, whatever...
The problem is that he created an artificial incompatibility because OS4&MOS have the most active coders and now you can be sure they won't help debugging any v60 ixemul app. Adapting AROS posix library to AmigasOS3.x would have been much less harmful. Don't get me wrong, it's great than someone codes for OS3.x and I can understand he choose to release his own version but that caused more fragmentation in our already fragmented community.
i trust you sdl is slow but have not seen any proof. depends on implementation i guess.
Just open SDL OWB on OS4 and compare it to OWB-MUI. Or just open Netsurf SDL on a real 060+RTG miggy. Download my tool and play with it and you'll see how easy is creating a Reaction GUI. To compile stuff you'll probably have to write:
gcc mygui.c events.c -o mygui.exe -noixemul