I am not sure if this will be of interest to anybody, but just in case.
It theory this should allow kindle programming that is as easy as with python and as effective as with c/c++

without requiring installation of any additional components on targeted readers.
I have following:
1. Linaro 20140811 based cross-compiler hosted on Windows 64 bits and targeting PW2 (built with mingw, so no Cygwin or any other *nix like environment is required for development) - it could be used separately.
2. Patches and instructions on how to setup full Go cross environment on Windows targeting PW2 (that includes an ability to use cgo so full set of Go packages could be used, including for example sqllite3 native database driver).
Updates 09/24/2014: I rebuilt gcc to move settings a bit closer to Amazon's original and it now should be possible to target PW1 and PW2 with the same compiler. crosstool-ng now a proper fork of 1.20.0 and leaves in separate github repo.
Updates 10/01/2014: Introducing KAL -
kindle auto-lists manager written in go and happily running on my device. Heavily inspired by barsanuphe work. It is work in progress, may serve as an example, but I have some plans for it
Updates 10/03/2014: Changed error processing a bit to print better diagnostics, since I have seen a problem which I cannot understand or reproduce... Also
kaznelson created
KUAL extension which could be used for testing/cleanup. I rather prefer program to run automatically via even processing, but his extension could give you some peace of mind.
Updates 10/08/2014 - installation and uninstallation packages (with KUAL extension) -
here
All sources are
here and
here