Recently I've been playing with fpcupdeluxe, a great tool to install FPC/Lazarus (stable, unstable...), with cross-compilers. I'm very
impressed by it, and I wrote a wiki page documenting how to use it (in the context of Castle Game Engine, although contains some general notes too):
In another news: Ten Square Games is helping us by lending Apple hardware with the latest Mac OS X. This is a great help towards the upcoming improvents of iOS in the Castle Game Engine (integrating it with the build tool better). Thousand thanks!