PhpMole is an integrated development enviroment for developing (primarily) web based and phpgtk based applications It grew out of porting Moleskine to php when Andrei (who wrote php-gtk) released bindings for the scintilla widget. Since then it has got out of control!

In simple words PHPMole is Dreamweaver crossed with MS Visual Studio, with a Content Mangement interface and Image tools thrown into the bag.....
Phpmole is currently licenced under the Gnu General Public License
You can browse the source code at my subversion repo.

NOTE: phpmole is no longer being developed - I now use and work on leds (see blog for more details)