I really want to know if Apple's Mac Mini supports Java because I'm pretty good at Java and I'd like to use Java on the Mini if possible.

I'm also wondering about the SDK(Software Development Kit) to make iTouch/iPhone applications.
- Is it user friendly?
- What kinda programming setup/coding does it use (Java, C++, C# if any of these)?
- Is it free to use?
- Anyone know a site to learn how to use the SDK if none of the above is used?

It has been a long time for me on an Apple, but I can tell you Apple provides any java dev kits that are available (and they always seem to lag one generation behind the pack, they were on Java5 last I heard). So, goto www.apple.com/java/ . I will say Apple seems to support 64-bit way better than the pack.

Somewhere else, I did read the iPhone does not use Java.

Yes, it supports Java.

As for the iPhone SDK:

- Is it user friendly?

That's subjective

- What kinda programming setup/coding does it use (Java, C++, C# if any of these)?

Objective-C

- Is it free to use?

Yes

- Anyone know a site to learn how to use the SDK if none of the above is used?

http://developer.apple.com/