ipod touchIPod Touch?

I'm planning on getting the iPod Touch. But I have a few questions about it. What's the difference between the software upgrades and no software upgrades? What kind of features does it have? Also if you have info about the internet, that would be awesome(:
Okay..first of all, I just have to say, the iPod Touch (Although expensive) is awesome!! So, the difference between no software upgrade and a software upgrade is that, when you have a upgrade (Like the January one for example), they give you 'noteipod touchbook', temperture, and e-mail or something, I think, but if you don't want an upgrade, it only comes with 'Music, Videos, Photos, iTunes, Calendar, Youtube (Since, if you go through Safari *Which is what internet is called on the iPod*, you can't watch videos through Safari), Contacts, Calculator, Safari, and Clock.

Good luck, and hope you enjoy your new iPod!
The original software includes: Music, video, photos, contacts, safari, youtube, clocks, calculator, calender, stocks and setting icons,ipod touch

The update includes: Notes, weather, maps, and mail.

I have had the ipod touch since Christmas and I bought the software updates. I use all of the icons, especially the notes, and it was definitely worth it.

The internet is also very easy to use and similar to internet explorer or mozilla firefox.

The features are all the different softwares on the ipod.

The ipod touch is definitely worth it. I never go anywhere with out it.