I went to create a war inside the Packaging page in the cfadmin from a Server install of CF10. The interface allows you to select a directory to use to build your war, however, the Server install splits out the war into 2 places.
Not a big deal to build the war dir prior to the CFadmin Packaging step but it would be nice to do it all from the CFAdmin.
This is not an issue if you install the J2EE version and deploy the war into Tomcat yourself.
Another issue is that I think with a few questions on what to package you can probably get the size of the war down over 100megs or more. Right now its 297 megs.