[atombender]

The MagSafe has a brilliant feature which is often forgotten: You can take someone else's MagSafe cable and plug it into your own MacBook without disturbing that person.

This is possible because of the magnetic connector, of course, but it's also because the connector has a light that tells you that the laptop is fully charged.

I frequently sit in an office with co-workers, or in a room with friends, and there's an unspoken rule that you can nab someone's charging cable if you need to charge your own MacBook.

The light helps in situations where the other person isn't near their MacBook, too. You'd obviously never take a charging cable from someone's laptop that might be low on juice. But if the light is green, you can.

[microtherion]

> The light helps in situations where the other person isn't near their MacBook, too. You'd obviously never take a charging cable from someone's laptop that might be low on juice. But if the light is green, you can.

If they were doing any computation with the lid closed, that's not going to make you any friends.

[atombender]

Surely they'd need an external screen connected for that.