It is a bad news for travelers who are expecting to surf internet when flying Singapore Airlines this month. The introduction of connectivity service with OnAir has been delayed from this month to the middle of June at the earliest. It's great that they found the problem early instead of after the implementation which in my recollection it was an annoyance when you were hoping that internet was available on board years ago. And yes not all aircraft will have internet. It's only on A345, A380 and 77W.