[U-Boot] Current state and existing users of FIT (Flattened Image Tree)?

[Joel A Fernandes]

Just trying to correlate old patches on U-boot mailing list to draw a
picture of the current state of FIT (Flattened Image Tree format)..
still have the following questions:

Can anyone familiar with this topic comment on the following?

(1) Other than Chromium OS, who are the most notable examples/users of FIT?

(2) There is no kernel build support for FIT (all patches that were
sent for building FIT from kernel sources were NAK'ed). How does
chromium-OS or other platforms build FIT images today?

(3) Are there any open examples on the web or in the sources for any
existing open source projects that show a working example of FIT?
The only example I could find were few .its files in the U-boot
doc/uImage.FIT directory.

Thanks!
Joel