Wall AC Charger USB Sync Data Cable for iPhone 4, 3GS, and iPod
Most of the reviews for this product are spot on, and I would recommend staying away. I wasn't able to resist the low price, and thought I'd give it a chance, so here's what I found:  The plug is definitely the wrong amperage/underpowered. It takes a very, very long time to charge either my iPhone or iPod using this plug. I left my iPod touch charging for 3 hours and it hadn't quite gotten to the halfway point. Not a huge problem if you're charging over night (if you sleep long enough), but if you're hoping