Well, there was an issue with the early Nanos and scratching and cracking, but since this is more or less your fault (leaving it in the heat is a big no-no), I wouldn't expect much sympathy, but you can always try. If nothing else they might offer you a deal to fix it. Keep in mind that you can get a 2GB refurbed Nano direct from Apple for $99 and it carries the same support and warranty that a new one does.