Ok, I've stuck it on AmiNet.
The bad news is that I can't get it to run as quick as I'd have hoped for, the render-loop is not really that efficient and it's obviously aimed at higher-end systems.
It's playable on my setup but anything less won't be much fun.
[youtube]r5XaMJM0kOk[/youtube]
This is now the second application I've ported that uses the new AGA SDL, hopefully we'll see some more soon!