http://www.apple.com/ipodtouch/features/ All of the iPod touch features, by apple.
For free apps I usually just browse around the app store in all the game categories. For a website, no I don't know any but thanks for that link.
I've only had 1 app billed directly two a credit card, and it had it's name. I always just used the giftcards that I got from people. But I think in iTunes, it shows past purchases and it'll be in this format "app 1, app2, app3..." so maybe it would just list them all and have the total. I'm not sure though...
About the saves, it depends on the game. I have to say almost all the games save progress. I don't know why they wouldn't. Unless it was a perk of upgrading from a lite/free version.
Accessories:
Case - Hard, silicone, whatever. I like the feel of having a silicone case and that's what I've always had on my iPods.
Screen Protector - I had one on my previous Touch but not as of yet on my 4G. Just from what I got from what you said, you got a screen protector to stop cracks? I don't think it will as it's just a thin film to help prevent scratches...if you drop it and it lands wrong the glass will break almost just as easy.
Wall Charger - That's up to you, $30 is a lot for the Apple one BTW but it comes in handy if you can't get to a USB port or you don't want to have to be near a USB port. I'm using my phone charger that allows for any usb to be plugged into it. But you don't need one really. I use my PS3, xbox 360, laptop, desktop, phone charger, or TV if they have a USB port.
http://store.apple.com/us/browse/ho...ories/shop_by_type/ipodtouch4?mco=MTM3NjM5MTM iPod Touch accessories on apple.