Using different OS (Unix) in same SAP Landscape

Hi,

Bcause of some business reason, we need to use AIX for Developement system and Sun Solaris for QA and Prod environment. I know technically it is possible, except some problems related to SAP kernel and SAP notes for OS level fix.

Does anybody has this type of scenario? What are the challenges we should consider in this?

Your help is much appreciated.

Thanks,

Krishna