I played for a few hours last night on my iPad, almost level 20. I downloaded the game for my iPhone to play a little at work, but my vault isn't there. Can this game please be attached to GameCenter on iOS? I will buy lunch boxes when I know I can do this, much like card packs in Hearthstone. Thank you.

They made a point of saying you can play off-line... I guess it would be cool to play across devices!

Can you play multiple vaults at once?

You can play 3 vaults per device now. For cross device play, my Jetpack Joyride can be played this way, no on-line required. If we play on two devices at the same time, it only syncs the last session played. Would be a nice feature for me, I like to play on the go and on a larger screen at home.

Yeah screen size is something I was wondering about.... once they port to Android I'll have to invest in a tablet! My SG4 screen will be too tiny for me.

I want to share my saves between my iPhone and iPad too!