+5  A: 

You can create a Shell instance without a TITLE flag and then render Google-chrome-like tabs manually. This way you can even create a non-rectangular windows

Eugene Kuleshov
Thanks Eugene, this has me moving in the right direction.
MartyC
+1  A: 

when dealing with things that are not yet in the JNI layer of SWT, you should always remember that you can quickly prototype things with JNA. When the JNA prototype, then you can either extend SWT's native interface or create your own separate JNI layer (This is an approach that worked well for me a number of times when dealing with SWT Carbon/Cocoa widgets)

L. Mihalkovic
I hadn't seen that project before, thanks.
MartyC