information on ACP

completed PMP last month (Aug).  I am planning for Agile Certified Practitioner (ACP). More information on this topic is very much appreciated.

I would like to get the information  on

1) how to gain, 21 contact hours;  (must be earned in agile project management topics )

2) how hard is it , when compare to pmp

3) Job opportunity

Thanks,

ASM.