A large recall has just been announced for a very small item, but one that poses risk of electric shock. The problem is what Apple calls the ultracompact USB power adapter that was supplied with every iPhone 3G in the US, Japan, Canada, Mexico, and several Latin American countries.
This is the white adapter that plugs into the USB end of the iPhone charging cord and is used to power up the phone from a regular outlet. Apple is asking people to avoid using the adapter until it can be replaced. In the meantime, they suggest charging the iPhone from a computer with a USB port.
The adapters can be exchanged at an Apple Retail Store starting on October 10th or you can order a replacement via the web at the Apple Ultracompact USB Power Adapter Exchange Program website.
More information can be obtained at the Apple Exchange Program website. You can see that Apple prefers to call this an exchange program rather than a recall. But whatever you call it, you will want to stop using the power adapter until you can get a new one.