license and copyright

[Ferdinando Ametrano]

Hi all

I will announce a new open source project in a few days, but I still have a 
few questions for which I would like to receive some help. I am especially 
confused about copyright stuff.

1) I've chosen a XFree86-style licence (or is it called XConsortium/MIT 
style licence?), that is a BSD style licence without the advertising 
clause. I append a prototype of this licence at the end of this message.
Since the license itself has to be copyrighted, my question is: who should 
copyright it? Is it me?
2) I and my colleagues will be providing the initial code base to the 
project. Should we have a copyright line in each file?
3) What about later changes of existing (copyrighted) files? Should every 
developer copyright his modification?
Wouldn't this approach turn every file into a mess of copyright lines?

thanks for you help

ciao -- Nando

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