azavea/OpenTreeMap-iOS — pull request #1 by jwalgran (2012-10-17 17:07:14+00:00)
Title: Show duplicate username registration error

As of OpenTreeMap commit 0fa82a6f1 the api will return a
409 Confilct if you attempt to POST and existing username
to /user. I added a check for the 409 status code, show an
appropriate message, then select the text in the username
field.