Meaning of source trees

[John Seghers]

I'm trying to understand what the various source trees mean.

When I use MokoMakefile there are three main directories created:
org.openembedded.dev/
openembedded/
openmoko

Both openembedded and org.openembedded.dev contain package definitions.
openmoko contains source code for both 2007.1 and 2007.2, yet the actual
sources that get compiled are pulled from repositories rather than from this
source tree.

openmoko also contains an OE tree, though I think this is the 2007.1 overlay
for modifications to the upstream openembedded work.

The build/conf/site.conf file references .bb files in openembedded whereas
local.conf references org.openembedded.dev.

So:
* if the sources in openmoko/ are not being used for compilation, why are
they there? And how does one USE them for compilation?
* Which tree(s) is(are) actually canonical for 2007.2?

- John