Hi,
Tagging bugs is not only good practice but makes tracking and sorting so much easier. With this in mind I came up with a list of tags that can be consulted when reporting bugs. Please take a look at:
http://wiki.linaro.org/Process/Bugs/Tags
Ubuntu bug tags [1] also still apply, the Linaro specific ones are just to further classify bugs for Linaro.
Please feel free to suggest changes/corrections.
Regards, Jamie.