We a bit late on this, but it is still great news for Windows Phone Instagram users. Daniel Gary’s Instance Instagram client has just received video playback support in version 1.4.1 of the beta of the app.
Instagram just added support for video to their software two weeks ago, to compete with Vine, and the service has already gathered significant early popularity.
The Instance beta currently only supports video playback, not upload, but I assume full support is only a matter of time away.
Thanks Truitt for the tip.