Your iPod is no longer just a fashionable mp3 player, with a few downloads and some clever tweaks you will be able to use your iPod as a memory stick; a map of the local underground; a route planner for your runs, bike rides or hikes; a video/film player and an encyclopedia (Wikipedia).
Memory Stick
You can use your iPod as a memory stick, not many people know you can and even fewer know how to. First of all when your iPod is plugged into your PC it shows up on iTunes as John Smith's iPod for example, well click on that and make sure the box that says enable hard drive use is checked. Then anything you put in your library can be transferred onto another computer, including Microsoft office documents, songs and videos.
Subway Maps
iSubwaymaps lets you download maps of the subway systems of multiple cities from New York to Tokyo. It can be really useful you won't have to go and find an information desk or anything anymore just check your iPod, how convenient. A download for this software can be found at: Isubway maps.
Trail Runner
Trail runner is a great piece of software for iPods that allows you to plan your routes for runs, bike rides or hikes on your computer and then import them to your iPod, you can also keep a journal of workouts using trail runner. A download for this software can be found at: here.
Video Player
Videora iPod converter is a great piece of software that allows you to convert DVD's or any video on the internet into iPod format and then automatically imports them into iTunes. It's easy to use and the conversion speeds are faster than most other iPod converters. It can be downloaded from: here.
Wikipedia
Wikipedia on your iPod, it is great imagine you are having a heated debate about whether Einstein was born in 1879 or 1880 you would be able to whip out your iPod and look it up in less than a minute how cool is that. This is one of the best downloads for iPod's and it's free get it from: here.