The keys on the keyboard randomly stop working. This appears to be due to a design flaw that allows even a small amount of dust to interfere with the key actio

The keys on the keyboard randomly stop working. This appears to be due to a design flaw that allows even a small amount of dust to interfere with the key action mechanism. Apple posted a 'fix' involving holding the laptop at odd angles and blowing compressed air under the keys to attempt to get them working again. Anecdotally, several HN users have reported having their keyboard replaced multiple times under warranty due to this issue.