Vine for Android coming "soon", and update coming to iOS
Unfortunately, "soon" was all the details that were given on the Android side. But, Vine also said that there is an update awaiting approval by Apple that will let you tag friends in your videos, so that should go live any day now.
More interesting though is the thought process that went into creating Vine. Vine co-founder Dom Hofmann told The Verge that the key to the app was not in "reducing complexity" as Steve Jobs and Jony Ive were noted for saying, but rather "concealing complexity". In other words, allowing users to do something relatively complex in a simple way. Quite an interesting interview if any of you are interested.
source: The Verge