[ovirt-users] Ovirt vs RHEV

Hi, can anyone explain differences between Ovirt and RHEV in version 4.1 ? I know that RHEV has diffrent product life-cycle, and there are some diffrences in installation process. Do you know if there are any additional featuers in Ovirt or RHEV ? Do you know any oifficial statements from RH about differences ? From my experience there is not too much diffrences, but I need to prepere such a comaprison for bussines so I would like to get an info from relaiable source. Chris