I've received a mailshot from VMWare saying that they have released their free VMWare Server for Linux.
http://www.vmware.com/products/server/One of the virtual machines they offer for download is Oracle 10g http://www.vmware.com/vmtn/vm/oracle.html . Might be useful for anyone wanting to test OACS development against Oracle.
Incidentally this virtual server might also be useful for deploying the OACS virtual machine.
- Steve