The thing about Vine becoming the internet's premier tool for making short-form videos is that it happened almost completely by accident. Its founders had ... Padgham began making Vines every day before he left for work, and they soon grew both in popularity and in ambition. read more
This means one of two things: either Vine is now so unpopular that their development team has enough downtime to actually care about Windows phone users, or more likely, they are so popular at this point that they have the resources to care about users besides just iOS and Android users. read more