i'm just wondering if anyone can tell me what's the major difference between the two closed and open source virtualbox editions (other than one being open source)

i have been using virualbox on Fedora 10 and now freshly starting with Fed 11... i want to know what are the advantages of using one over the other?

i looked up on package installer (software add/remove) and there seems to be only virtualbox-ose readily available for adding... it comes with akmod-virtualbox-ose and other stuff...

does the akmod-virtualbox work like akmod-nvidia? one-off installation?

thanks i'm sticking to the non-open source version for now