VoodooPad got a major upgrade today; after an intense beta period, version 4.0 is live. For those of you not familiar, VoodooPad is a personal wiki, a brainstorming and note-taking tool and the ultimate "geek's notebook" (my term, not theirs). With the ability to import a variety of files and link others, it also makes a great project management hub. I use it in combination with one of my other previously-mentioned favorites, Curio. It's had a fair number of mentions here in the past, and the 4.0 update is certainly something to talk about.

Among the new features is the ability to sync using WebDAV. You can sync pages or entire documents in both directions, allowing for collaboration or just providing the ability to work on multiple machines. There are instructions available for setup on the Flying Meat wiki. I've been testing the sync feature for a while, and it works superbly. The web-publishing capabilities have been expanded, including iPhone-optimized output. There's also a new feature called "The Bucket" for gathering text -- via a system-wide hotkey -- from any application. PDF output, faster speeds, and a new layout for palette windows all add up to a great release.

Organizing notes and files is simple, and linking together pertinent pages, snippets, Address Book contacts and more is a breeze. For those of a scripting persuasion, the reason I call it the "geek's notebook" is VoodooPad's ability to execute pages as scripts (Python ... Lua is being deprecated), and also the ability to extend via a plugin API. This can be used to work in HTML, Markdown and Textile support, set up GTD systems, even publish a blog.

VoodooPad 4 is going for $29.95USD, and version 3 users can upgrade for $14.95USD. The Pro version is $49.95USD, upgrade for $19.95USD. There are free demos of each on their respective pages, and there's also a "Lite" version available for free, no strings attached. VoodooPad customers who purchased version 3 after August 1st, 2008 get a free upgrade. Check the full release notes for version 4 (and prior releases), as well as the features page for more information on VoodooPad and the 4.0 update.