Currently available:

* Kindle_src.1.0.0.292 (http://s3.amazonaws.com/kindle/Kindle_src.1.0.0.292.tar)
* Kindle_src_1.0.4_144750018 (http://kindle.s3.amazonaws.com/Kindle_src_1.0.4_144750018.tar)
* Kindle_src_1.0.8_164820023 (http://kindle.s3.amazonaws.com/Kindle_src_1.0.8_164820023.tar)
* Kindle_src_1.1_177110002 (http://kindle.s3.amazonaws.com/Kindle_src_1.1_177110002.tar)
* Kindle_src_1.1.1_238920002 (http://kindle.s3.amazonaws.com/Kindle_src_1.1.1_238920002.tar)
* Kindle_src_1.2_299870016 (http://kindle.s3.amazonaws.com/Kindle_src_1.2_299870016.tar)

http://www.amazon.com/gp/help/customer/display.html?ie=UTF8&nodeId=200203720

Kindle Src 2.0_291330095 (http://kindle.s3.amazonaws.com/Kindle_src_2.0_291330095.tar.gz)

Kindle_src_2.0.1_303870012 (http://kindle.s3.amazonaws.com/Kindle_src_2.0.1_303870012.tar.gz)

i am going to download and do a file comparison between the two kindle 2 firmwares and see the differences.

edit:
these files are changed in the source dump according to md5 sums

alsa-lib-1.0.13_patch.tar.gz
alsa-utils-1.0.13_patch.tar.gz
busybox-1.7.2.tar.bz2
dosfstools-2.11.tar.bz2
e2fsprogs-1.38_patch.tar.gz
fuse-2.7.1_link.tar
klibc-1.5.tar.bz2
linux-2.6.22-lab126.tar.bz2
module-init-tools-3.2.2_patch.tar.gz
procps-3.2.7_patch.tar.gz
taglib-1.5.tar.bz2
uboot-1.3.0-rc3.tar.bz2
udev-112.tar.bz2

edit 2: it looks like some of the files are not actually different. they just are zipped up in the archives with different time stamps but the same data in the files.

edit 3: so far i have checked everything but the kernel source and the files inside he archives are all identical, except different time stamps that mess with MD5 sums of the archives...

edit 4: the odd thing is most of the time stamps are only 10-20 minutes apart.... 6:59 on 2/20/09 and 7:20 on 2/20/09. i am still trying to figure out why there would be a time stamp difference and why they would rearchive files again only 20 minutes later.

these are the different files in the two kindle kernel versions.

pm.c
isp1504xc.c
charger.c
mc13783.c
mxc_spi.c
arcotg_udc.c
broadsheet_hal.c
einkfb_hal_util.c

Kindle_src_2.0.2_309510017.tar.gz (http://www.amazon.com/gp/help/customer/display.html?ie=UTF8&nodeId=200203720)

Amazon doesn't include all GPL sources, e.g. all DBus stuff is missing - yes, they seem to be violating GPL at the moment, although I thunk it's just a packaging error...

Kindle_src_2.1_337560062.tar.gz (http://kindle.s3.amazonaws.com/Kindle_src_2.1_337560062.tar.gz)
Kindle_src_2.1.1_351050064.tar.gz (http://kindle.s3.amazonaws.com/Kindle_src_2.1.1_351050064.tar.gz)