>However interoperability is not as easy as you might hope, even with an open standard. Came here to say this. Rather than being all interoperable / plug and

>However interoperability is not as easy as you might hope, even with an open standard. Came here to say this. Rather than being all interoperable / plug and play, you wind up having to validate different combinations of hardware from different vendors... which then has to get revalidated when new versions of software are rolled out.