why there is no VB VPS ?

[FiFtHeLeMeNt]

Hi,
I searched the whole net , I couldnt find a company provides VirtualBox VPS , but there are Vmware and Xen and OpenVZ and etc.
is there any particular reason that no company uses VirtualBox to create VPSes ?
I found VirtualBox very lightware and low resource consumer , just wondering why no hosting company uses it.
Regards

[SSCBrian]

I'd say that at this point it's still not quite stable enough. It's getting there, but I wouldn't want to try and offer/support it to outside businesses. Fine for my own use though.

Might be some licensing complications as well.