WebOS is an OS that i have least experience in and a search on softwares that tailors to Getting Things Done yields very little results other than our dear Evernote.
That is why its refreshing to see Outline Tracker for WebOS. I did not give this a spin since i do not have a Palm Pre or Pixi to try it out.

How much does it cost?
There is a free version on the App Catalog that limits you to 50 tasks but the full version costs USD23.50.
What version of WebOS is it compatible with?
You will need webOS 1.3.5
What are its main functionalities?
- Organize tasks and sub-tasks as many layers deep as you need
- Keep track of where you can work on a task and who’s responsible
- The dynamic to-do list shows only the tasks you can work on here and now
- Color-coding shows at a glance who’s responsible for a task — you, your organization, or no one
- The dynamic waiting list shows tasks that are waiting for action by someone else — a single tap takes you to their entry in the webOS Contacts application
- Items with a due date appear in the webOS Calendar and the project outline, and tasks appear in the dynamic to-do list as well
- Coordinate with others using Basecamp from 37signals (useable through any web browser, with custom apps available for many kinds of smartphone)
- Basecamp items are cached locally, so Basecamp projects can be edited without a network connection. Changes will be uploaded when the network connection is available.
- Supports David Allen’s Getting Things Done® methodology
- Also functions as a general-purpose outliner, exporting to (and importing from) the modern XOXO format, easily integrated into web pages
GTD – Able to Organize in tree structure
with this you can essentially create Tasks and Sub-Tasks or Sub-Projects

GTD – Able to filter by Contexts/Places
if you are to perform GTD you will need to be able to filter your tasks by places or agendas. This one does it but not sure if it can achieve the sophistication of Appigo ToDos context filtering. [context/places intro and tutorial >>]

GTD – Waiting for looks good!
You can review your waiting for list according to the people. Outline Tracker allows you to go to the Palm’s contacts when you click on the person’s name.
Very useful.

GTD – comprehensive task view and integration with webOS Calendar
This is a good move that i don’t see on alot of mobile apps on iPhone since you will need a fair bit of work to achieve this on the iPhone OS platform.

essentially, your items need not be tasks and need not have dates. this gives it flexibility, but also increases the developer’s complexity.
also, note seems to be missing if you want to add additionaly details.

the kicker is that those items with due date specified will go into your webOS calendar. some folks definitely love to have this in their GTD system.
Final Thoughts
i thought its abit expensive at $23 bucks but really not sure if all App Catalog application are priced at that range. I hope we come accross more apps like this to compete and come up with good GTD apps for the webOS.
At the iPhone App Store competition have kept the incumbents at the top of their game and we do hope to see more of these on the webOS.
[Outline tracker for Palm Pre and Pixi >>]