Should I be learning HTML5?  What's the big draw?
I've used html since 1995.  I know javascript and can manage css and jQuery.  

Do I need to start learning HTML5?  Is this going to be real, or is it going to be like VRML or some other odd "standard" that never really took off? 

If it is going to be real, WHY?  What's the fundamental advance?

If I do need to learn it, what's the best way forward, for an experienced developer? 
I'm most comfortable using a text editor (emacs) to do development. 
Should I be learning HTML5?  What's the big draw?
===

I've used html since 1995.  I know javascript and can manage css and jQuery.  

Do I need to start learning HTML5?  Is this going to be real, or is it going to be like VRML or some other odd "standard" that never really took off? 

If it is going to be real, WHY?  What's the fundamental advance?

If I do need to learn it, what's the best way forward, for an experienced developer? 
I'm most comfortable using a text editor (emacs) to do development. 