I love my iPod touch. I got it as a Christmas gift from my boyfriemd. I just adore it, I've put all my music on it. It's very simple to use, and has some advantages to it. I have the second generation. I'll explain the difference between the first and second generation in a little bit, and how many GB'S you can buy the iPod touch for.
Ok so the iPod touch second generation has speakers on it!! Unlike the second generation. The first generation is also slightly bulkier than the second generation (i put up a picture so that you can see the difference, the bottom one is the first generation, and the top one is the second generation). The clearaty of the screens between both iPods are different, the first generations coloring looks dull compared to the second generations. You can buy the iPod touch with 8GB'S, 16GB'S, and 32 GB'S. It has space for you to put in your personal photos, music, it has an app for the iTunes store, and videos.
So now lets get to all the apps it comes with. When you get your iPod touch and turn it on (after you charge it of course) it should have these apps on it: Contacts, Mail, Safari, Calendar, YouTube, Stocks, Maps, Weather, Clock, Calculator, Noted, Settings, and App Store. You can add games onto your iPod if you wish. Some of the applications and games I put on mine are: Big Oven, Bubble Wrap, Dictionary, Done Drinking, iHusky, Lose It!, MazeFinger. MiniPiano, TicTacTouch, Word Wrap, Tap Tap, Nike+iPod, Backgrounfs, AIM, Atomic Fart, Dots, iPetPets, reMovem. All of these apps were free from the iTunes store.
The iPod functions on the internet with a wireless connection (wifi). So you can get online and check your mail, get on websites. The iPod is really fun. I love having it. If you get an iPod touch, remember to get a case and screen protector for it, so that it doesn't get scratched, fingerprinted, or even broken.