This is concern on AMP and solaris zone
coolstack 1.3.1 has version on sparc and x86, webstack also has version on sparc and x86
coolstack install pkg under /opt/coolstack
webstack install pkg under /opt/webstack
opensolaris 2008.05 only support x86, next release will support sparc.
the amp, amp-dev install apache(apache2) under /usr, MySQl under /usr/mysql and php under /usr/php etc
the blastware.org also provide amp and install pkg under /opt/CSW
As for AMP in solaris zone, the configuration file and some docs files are under /etc and /var so it is possible to use the spare zone and setup different zone with various different zone for various AMP.
Even under /opt , one can share /opt with various zone
Please see the following links: