Purpose of the Tag field on Add View page? Under the Tag field on the Add View Page is such note:


  Enter an optional tag for this view;
  it is used only to help sort views on
  the administrative page.


But I also noticed that when I fill this field out another template becomes available with tagname in it's name. I should say that that might be quite handy in my case, when I kinda need to narrow the hit to specific views only. Can I perhaps use this feature to granulate templates for the views?

Any other usage case for the Tag field?
To me, the tag field is handy for sites that have a lot of views.Different views have different purposes; for instance admin/editor tasks, front end pages and blocks, or as source for node reference fields. If you tag your views consistently, it's easier to find a view when you need to edit it.