GPA's accuracy reflecting intelligence.

[Relambrien]

Thanks Kilroy; that is indeed who I'm talking about.

Here's an overview of the types of intelligences he talks about. You can find a more in-depth explanation at http://en.wikipedia.org/wiki/Multiple_intelligences

Bodily-Kinesthetic - The ability to control one's body and use "muscle memory"
Interpersonal - The ability to interact with and understand others
Verbal-Linguistic - The ability to work with words and languages
Logical-Mathematical - The ability to analyze, use logic, and reason
Naturalistic - (note: not originally part of Gardner's work) Sensitivity to nature and one's surroundings
Intrapersonal - The ability to understand oneself and be self-aware
Spatial - The ability to visualize and mentally manipulate things
Musical - Sensitivity to tone and sound

Now, as for the objections to his work, I can't say anything about whether these are all tied to different mental faculties. The good thing about that is the layman's definition of "intelligence" doesn't bother itself with that, so it doesn't matter to most people.

I can talk about "intelligence vs skills" though.

A "skill" generally refers to a person's proficiency in a certain action, comparable to knowledge, whereas "intelligence" can refer to an affinity for something, or ease of learning. Basically, how well someone has the ability to understand, learn, and apply. For instance, someone may be fluent in Spanish but found it very hard to learn. Then you may have a high school student who's having a very easy time learning the language. The former demonstrates knowledge, the latter demonstrates intelligence. Ease of learning isn't something that can be developed like a skill can, so the best way to refer to it to most people is "intelligence."