From WebOS Internals
I'm still around (check IRC).
I use to switch people to use Komodo Edit and strive for it to be one of the top editors when developing for webOS, but due to other priories the add-on is falling behind.
The toolbox is available for download on my blog at http://webos.templarian.com/komodo/
Our wiki page for Komodo is here.
Icons I get bored and create icons for others.
FamFamFam Silk Icons
View them and use them in your projects: Patch webOS Graphics#Palm Pre Icons (FamFamFam Silk Style)
Use them everywhere. Tux Icons