Bay Area Hyphy

In “From Azeem to Zion-I: The Evolution of Global Consciousness in Bay Area Hip Hop” Arnold explores the connections of Bay Area hip-hop to globalization, but he also emphasizes the grass-root, local feel of the movement, where people produced their own records and tapes and sold them from the trunks of their cars. When we were talking about it in class, someone in my group mentioned the hyphy movement that occured in the Bay Area over the past two years. Hyphy is a form of dance that is fluid and crazy, meant to achieve the effect of drunkness, but the dance form has become very stylized with music from Bay Area artists to match. Many people now know E-40 from their something "Tell me when to go", but they started locally as "hyphy" music. Here's a clip with examples of the hyphy dance style:

http://www.youtube.com/watch?v=QViH7SQ2miU

And to explain the movement:

http://www.youtube.com/watch?v=iOfoFAPd6tU

My question is, does this new hyphy movement compare to hip-hop or is it an extension of the genre? With the feeling of pride Bay Area people have towards hyphy, can it become global, or will it remain local?