Learning Styles, Technology, and Differentiated Instruction

I'd like to jumpstart a discussion on Differentiated Instruction.  I am in the middle of creating a class for The Eighth Floor on the topic of Technology and Differentiated Instruction.  The video above made me think about how teachers collaborate on activities in the classroom across the curriculum.  Any thoughts you may have about either topic would be appreciated.  What do you currently do to aid different learning styles in your classroom?