[Tagging] refining place values, what are the global cities?

[M∡rtin Koppenhoefer]

I invite everybody to participate in a discussion about refining the
place values. IMHO they are currently not sufficient even for basic
use (e.g. mapnik proves this by using external data for cities on low
zooms). I modified the page:
http://wiki.openstreetmap.org/wiki/Proposed_features/new_place_values

feel free to add a list for your country (or discuss this before here
or on your local ML).

Cheers,
Martin