I believe it is magsafe, from the leaked shots/info.
From the leaked shots it looks like the ground is what you're probably thinking is the magsafe, it will still need to be plugged into the device (not sitting on the edge like magsafe). Being able to plug it in in any orientation is a big positive for them, I think a lot of people damage the dock connector by not checking which way fits and forcing it in. I've had dock connectors and devices since the original iPod and I'm happy to see them move away from such a legacy connector, removing things like firewire etc and making it smaller can only be good for the phone battery life!