[brettcvz]

Re. how it works behind the scenes, we do a streaming protocol over UIPasteboard, with actions being cached locally and periodically updated from the servers when connection is available. At least for now - we will continue to iterate on the underlying tech to make it faster/more reliable/more secure.

Re. iOS7, it required being a bit more clever, but Ink works with iOS7.

Give it a try, let us know what you think.