Stable branch/tag?

[David Lambert <dave@lambsys.com>]

I am new to git and openembedded so please excuse another couple of 
naive questions.


1) What is a recommended stable branch/tag, and what command(s) are 
needed to obtain this?
2) Is there a document somwhere that explains the relevance of the use 
of branches and tags in this project?

Thanks in advance for help,

Dave.

Listing git tags shows:

git tag -l

SlugOS5.3-beta
mv-packages-to-recipes-post
mv-packages-to-recipes-pre
pre-nov2009-core-updates
shr/testing2009-1rc1
tested_2010-10-14
tested_2010-10-25
tested_2010-10-29
testing_2010-08-23
testing_2010-08-30
testing_2010-09-07
testing_2010-09-13
testing_2010-09-20
testing_2010-09-27
testing_2010-10-08


and git branch -a
* master
   remotes/origin/HEAD -> origin/master
   remotes/origin/bluelightning/opie-git
   remotes/origin/cbrake/qt-4.7.0
   remotes/origin/darwin
   remotes/origin/fso/milestone5
   remotes/origin/fso/milestone5.5
   remotes/origin/holger/hash-style
   remotes/origin/holger/openmoko-merges
   remotes/origin/holger/qt4-4.7
   remotes/origin/holger/qt4-sdk
   remotes/origin/holger/random-fixes
   remotes/origin/holger/staging-branch
   remotes/origin/ieee80215
   remotes/origin/jan/master
   remotes/origin/john_lee/fastboot-devel
   remotes/origin/john_lee/openmoko-toolchain
   remotes/origin/kergoth/alternatives
   remotes/origin/kergoth/autotools
   remotes/origin/kergoth/bluez
   remotes/origin/kergoth/hostap-madwifi
   remotes/origin/kergoth/master
   remotes/origin/khem/import-linaro-gcc-4.5
   remotes/origin/koen/darwin-host-fixes
   remotes/origin/koen/static-libs-rework
   remotes/origin/laibsch/scim
   remotes/origin/laibsch/wip
   remotes/origin/likewise/nios2
   remotes/origin/master
   remotes/origin/morphis/for-upstream
   remotes/origin/nios2
   remotes/origin/org.openembedded.angstrom-2007.12-stable
   remotes/origin/org.openembedded.dev
   remotes/origin/org.openembedded.documentation
   remotes/origin/org.openembedded.dreambox
   remotes/origin/org.openembedded.dreambox.release_25
   remotes/origin/org.openembedded.oetest
   remotes/origin/org.openembedded.oz354fam083
   remotes/origin/org.openembedded.oz354x
   remotes/origin/org.openembedded.packaged-staging
   remotes/origin/org.openembedded.slugos.5.3-beta
   remotes/origin/org.openembedded.stable
   remotes/origin/pb/toolchain-desuck
   remotes/origin/push/oe
   remotes/origin/raster
   remotes/origin/rik/amd64
   remotes/origin/rik/qemu-0.12
   remotes/origin/robertschuster/amd64-target
   remotes/origin/rpurdie/for-testing
   remotes/origin/rpurdie/work-in-progress
   remotes/origin/shared/blackfin
   remotes/origin/shared/xorg-7.4-update
   remotes/origin/shr/import
   remotes/origin/shr/merge
   remotes/origin/shr/stable2009
   remotes/origin/shr/testing2009
   remotes/origin/shr/testing2010
   remotes/origin/shr/unstable
   remotes/origin/stable/2009
   remotes/origin/stefan/eten-support
   remotes/origin/testing
   remotes/origin/testing-next
   remotes/origin/thesing/arm4-eabi-angstrom
   remotes/origin/ulf/linux-2.6.30
   remotes/origin/ulf/linux-2.6.30-2010-10-16
   remotes/origin/ulf/linux-2.6.30-20100317
   remotes/origin/ulf/linux-2.6.30-20100930
   remotes/origin/ulf/linux-2.6.30-at91sam9g45_m10
   remotes/origin/ulf/linux-2.6.30.2
   remotes/origin/woglinde/gettext
   remotes/origin/xora/angstrom-sqeeezy
   remotes/origin/xora/angstrom-srcpv