Rich Unger created this implementation of the JDIC's embedded native browser. Michal Mocnak describes something very similar in his blog. If you're interested in a tutorial that describes how to embed the JDIC native browser in the IDE, please leave a message at the end of this blog (or write me at firstname.lastname@example.org).
By the way, notice that my toolbar contains Ludo's Google toolbar... not bad, huh. I can now do google searches inside the IDE and display the results inside the IDE!