Wikipedia now features limited availability of pages in Gaelic and other celtic languages! Heck Yes.

Gaeilge:
http://ga.wikipedia.org/wiki/Pr%C3%ADomhleathanach

Gàidhlig:
http://gd.wikipedia.org/wiki/Duille_M%C3%B2r

Cymraeg:
http://cy.wikipedia.org/wiki/Hafan

Gaelg:
http://gv.wikipedia.org/wiki/Main_Page

Scots (so P1M can enjoy Wikipedia too! ):
http://sco.wikipedia.org/wiki/Main_Page