I was a tad lucky that the clips on my power adapter from Nokia were actually faulty. It clipped in so well that even pressing the side areas to lower them didn't work. I wound up using a pin to release them, then filed them off, all on day one. And to avoid similar problems, I did the same to the USB cable as well. I at first regretted that, since a slight bump would sometimes unmount the device. But when this issue started becoming more common I saw it as a blessing.

Mind you, this can happen with any port. I had the same thing happen to a mini-usb port on my GPS a year or so ago. Just over time the stress ripped it off the board. It even had a couple via posts, which had apparently snapped one at a time until it was just the solder holding it on.

One thing I'm looking forward to is some of the new tech coming down the road where the batteries themselves have an inductive charge circuit baked in. Samsung is looking at this for their next line of batteries. It's not as power efficient as direct copper contacts, but would solve issues like powering the device if it's got a weak port, or the port breaks.