Here is an introductory video that shows you how to get up and running with Scrivener. There are two versions, one showing Scrivener 2.0 for Mac and the other showing the Scrivener beta for Windows (Mac users will relish how much more polished the Mac version is, but Windows users can take solace from the fact that the Windows version still has a way to go before it is released early next year, so does indeed have a lot of rough edges at this stage).
I have recently mentioned that Scrivener 2.0 features the ability to sync documents with Simplenote for the iPad and iPhone, and also that PlainText for the iPad works with Scrivener 2.0's new folder-syncing feature. Additionally, Notebooks for the iPad by Alfons Schmid works very well with Scrivener 2.0's new syncing features too. David has just finished putting together a video showing Scrivener 2.0's folder syncing feature in action, using PlainText and Notebooks as examples (although it also shows how you can use the feature to share documents with Word):