The Ipod Nano come in 4 and 2 gig sizes. It's a great thing for skiing. It holds 1000 songs yes, but your not going to go through more then.. 500 at the very ut most in day unless their all short songs. To keep your i pod batteris going keep it on the inside of your jacket by your chest to keep heat to it, or grab some hand warmer pads and toss one in the pocket where your i pod is. As for loosing the nano it;s best to keep it in a case that you can buy. There are really neat wallet cases and can also hold a credit card or money as well as your nano, i'm going to get one of these. And if your buying any Apple products i suggest you get the warrenty incase anything happens. The battery life on a nano is 14 hours, just one hour short of a i pod's battery time, so their just as good, except smaller in memory size and actual size. They measure 8.9 cm long 3.9 wide and .7 cm thick (smaller then a number 2 pencil) later
-aaron