UPDATE: ShellEd version 2.0 has a new installation procedure:
I just tried this and it worked fine against Eclipse Helios
I've been having getting my normal editor working (a Winders editor that I run under wine) and thought I'd give eclipse a shot.
I did some searching and ended up installing the ShellEd plugin. It offers source coloring and context sensitive help popups. It doesn't create a custom perspective or a project type; but that's fine. I'd be happer with the solution if eclipse offered text wrapping (!). Despite that, the system seems to work fairly well.
Getting it running took some time as the eclipse thread on the subject didn't yield up a very helpful solution. The most recent post (dated 'Sep 16, 2009 4:21 PM') suggested putting the plug-in in the dropins folder; but this didn't work for my galileo installation. I think the issue had to do w/ missing dependencies. I originally installed the J2EE standalone version, and for whatever reason, it didn't have the necessary dependencies installed (again: I think). The ShellEd plug-in doesn't have a current eclipse installation site associated with it; but it DOES have an old one:
I found that in the features/com.something.eclipse.shelled_1.0.4/feature.xml file in the shelled_1_0_4.zip download. I added that to my eclipse update list and installed it. That worked. I then uninstalled shellEd using eclipse (so I could install the newest version). I was able to get the 1.0.4 version working by following the aforementioned post (putting all the plugin directories into the eclipse 'dropins' directory).
Hope this helps someone.