sync problem

Hi.
I've got problem with my iphone and ipad.
When I edit contacts on my iphone I want to get it on the ipad, and if I do something to the ipad i want to have it on iphone.
but it doesn't work.
I add a contact on my iphone, no contact on my ipad.
I edit the kalendar in the iphone, nothing on my ipad.
I've checked all icloud settings. but nothing helps.
Can you help me with this?
/Kristoffer