The rumor mill claims that Orlando bloom and his girlfriend, model Miranda Kerr, have gotten engaged! Have they really?

Photos of the couple surfaces a couple of days ago and they show Miranda's finger adorned with what seems like an engagement ring.
Her rep isn't in a position to comment on the situation, and when that happens it's not a "No, these are only rumors. Mr. Bloom and Ms. Kerr are not engaged" statement!

So, is Orlando Bloom off the market officially? Are Orlando and Miranda really engaged this time?