My name is Carlos Quiles and I am the co-writer of a cultural newspaper, www.iventia.com, written in extremaduran and a fala (or 'galaico-extremaduran'), both regional languages of Spain, and both with international recognition (ethnologue.com, proel.org, mercator media, the wikipedia itself and some universities around the world which have interest in recording ressources about every possible language).
Me and some other members of the extremaduran APLEx society (www.aplexextremadura.com) are interested in creating a wikipedia in both regional languages, to promote the use of them.
The galaico-extremaduran has official recognition in the Autonomous Community of Extremadura, and is spoken by some 20.000 people. The extremaduran is recognized neither in the A.C. of Extremadura nor in the A.C. of Castile and Leon, partly because of its similarity with the castilian dialect with the same name (see the wikipedia: extremaduran language, for more information), and partly because it is so endangered that only the oldest men speak it still. But there is a great advantage of creating the wikipedia in extremaduran: almost every extremaduran can understand to a good degree the language, even if they already speak the castilian dialect, so having probably more than 1.500.000 million people able (and possibly willing) to write and read it.