There is (well there was last year) very few learning resources for OpenGLES 2.0
but i did find a book called OpenGL ES 2.0 Programming Guide by Aaftab Munshi, Dan Ginsburg and Dave Shreiner.

i remember i learnt a little bit of it, but i couldn't retain the knowledge due to projects just being cancelled.

I would pass on my knowledge of opengles 1 and 2 to you but i'd have to find it in my brain first.

going straight to 2.0 is probably a good idea.