http://opendatakit.org/use/getting-started-rev122/ -- is a Getting Started
Guide that walks through using and modifying a form, and highlights many
of the capabilities of the 2.0 tools, including bi-directional sync with
the server.
The 2.0 tools are in Alpha or Beta status. We are referring to the
combined set of tools as the "rev 122" software. To understand what we
mean by the Alpha and Beta designations, see
http://opendatakit.org/use/2_0_tools/#Release_Designations
The rev 122 software works with the just-released ODK Aggregate v1.4.4.
Known limitations of this software are described here:
http://opendatakit.org/use/2_0_tools/#Limitations