Hi Janet!
Great question! It is clear that Gardner feels MI and LS are distinctly different models. A learning style is one set modality that a learner uses in all learning contexts. It doesn't change over time; it is considered one's innate preference for learning.
An intelligence is one of a number of different paths to learning which all act in consort. While some may by naturally stronger than others in a learner, each intelligence can be developed to its full potential. Most importantly, Gardner does not promote the use of his intelligences to label learners by less developed intelligences. Since all the intelligences are in operation, he encourages his theory to be a model for building on strengths, not deficits.
I know more recently some progressive learning style theorists are discussing their model in flexible terms with regard to learning through more than one modality. Still, the key for me is Gardner 's emphasis on a model that empowers learners rather than labeling them and trying to compensate for perceived weaknesses.
Perhaps as the two camps keep discussing their respectrive models we can continue to bridge these differences so that we all agree on how we actually learn. Let the dialogue continue!
For more information on how I see MI theory supporting learners in instruction, please see my Wheel of Domains at http://surfaquarium.com/MI/mi_domains.htm
-Walter
