I've been looking at Crystal Space and it looks great. It seems to support every platform but Amiga, which is hardly surprising.
I've also had a look over at things like Dark Basic, which allows you to program games in Basic, which would be ideal for newbies. Its Windows only.
Also while I was at it, I have come across RealBasic(of Mac fame), which is a cross platform application development environment based on Visual Basic 6. It also is capable of producing 3d games according to its website.
All the above would be magnificent tools to port to OS4 and MorphOS.
There are also numerous other cross platform toolkits out there.
We need software and we need it quickly when OS4 is released and this would be one way. I give Basic as an example as I would imagine that would be the quickest way for non-super-techies to get involved in rejuvinating the platform, even if it was only for prototyping purposes.
Should we organise a petition to get these great tools ported?
What are your picks?
And how might we go about influencing the relevant parties for a port?