Hello again,
I would like to first make the community aware that a new release of Lazarus and FPC are nearing. It seems wise that, if Simba is to be maintained at all, that it should target the newest Lazarus and FPC release. The 1.8 development branch has undergone a long series of bug fixes and the stability has been increased to the point that Simba will probably not experience many grave errors when undergoing cursory testing on the fifth release candidate.
If there are any issues that the Simba codebase experiences when being transitioned to the new releases, it is most likely that the Lazarus and FPC developers will be available for comment now. As time goes on it will become increasingly difficult to port existing code.
The new versions are available at the Lazarus SourceForge page.