In my opinion SAP doesn’t represent a good framework for resolving some of the BYOD challenges that are coming up because it is essentially a closed circuit technology that has very restrictive and prescriptive rules around how you can interract with it.
Centers of Excellence equivalencies exist in many realms including ITIL, CoBIT and the various ISO and BS guidelines.
For any of these to be successful some fundamental tenets have to be adhered to:
Have an inventory of what you have (CMDB)
Understand why BYOD is appealing in your organization of business supplied technology
Have a set of rules of engagement /interraction (principles, policies, procedures, processes and practices for service requests, support and escalation)
Consistently monitor and manage the engagements / interractions (Audit)
Engage, retain and hire technically competent resources to support your environment.
If you’re doing these things and have these structures then it likely you have a Center of Excellence (certified or otherwise).