Announced on 22 October 2013, reaches the store in November 2013, updated a few times, last updated in March 2014. 
About 6 months, and 1 year in Beta. 

You can too...
Protest with the hashtag #InstagramWPIsAlive on Twitter. 
https://twitter.com/instagram 

The Instagram team has no contact form, much less email. 

- RT and like tweets. 
- Make tweets in a natural way and not robotic. Comment on the subject. 
- It takes an official app, do not tell me that this 6tag valley. 
Missing functions are numerous, so not worth being mentioned. 
I think the union will do with the strength.

- From Nokia Lumia BR, Windows Phone Mania, Blogão Mobile, Mega Windows Phone, Windows One, One Windows groups on Facebook.