Update text files on Android and sync to Dropbox I'm transitioning to plain text files as the basis for my GTD system, which is awesome when I'm at my laptop (Vim editing all the way). 

However, I haven't yet figured out a good way to take quick notes on my Android tablet, which is a Xoom running Honeycomb (not yet rooted, although I'm open to the idea).

Ideally what I like is a script or widget that would pop up a textbox that I could type a note into. The note would then be saved and synced to Dropbox automatically.

The idea is for this capture process to be as seamless as possible. I would like to avoid having to remember to manually sync files in the Dropbox app, or launch an app and fuss with naming a file, browsing to the correct directory, etc. The apps I've tried so far are much too fiddly for my tastes.

Any suggestions for how I could accomplish this? I'm a developer, I could definitely tackle a more code-oriented solution if that's the only way.
I use an app called Epistle to create/edit textfiles within my Dropbox repository. It even supports Markdown.

There are other similar apps in the Market. If you've embraced todo.txt for your to-do management, Gina Trapani's Todo.txt Touch is helpful. It also syncs to Dropbox.