Two questions:

1. Does their steal/hide ability base off of piety ??

2. Do all clerics get the same stat points per level ??
ex: cleric of enoch gets int at level a, g, and e and so will a cleric of kamira.

1) Yes: piety is important for a cleric of Kamira in regards to hiding and stealing.

2) All clerics get the same stat bonus - note the statfinder doesn't ask you what kind of cleric you want to be.

Follow-up questions then
Does this mean that all multi-classes that are half cleric and some dex based class (assassin, thief, fighter) will have piety act as dex?

What are the chances of having cleric/fighter open for testing/playing :-D