Fonts!
The severe lack of fonts. All the tools to get truetype fonts to work are all kludges. The closest to best is using AFAOS, which doesn't always work, but when it does, it adds support for anti-aliasing which makes a huge difference with larger screen resolutions and RTG.
My dream is that 3.2 would support truetype fonts out the door.
Unfortunately, truetype was not planned for 3.2.
However, I reiterate the invitaion to join us, and maybe then you can help us accomplish that for AmigaOS 3.3.
Think about it.