There is an App Store on every iPhone.
You download them from there (:
no you cannot use ipod and iphone apps on itunes, but you can buy the apps on itunes and put them on your ipod and iphone
No.
no, you can't, but you CAN put ipod touch/iphone apps on your ipad
You can put all your apps in a folder to help declutter the screen.
plug your iPod into your computer, click iTunes, then it should put your apps on there. Then plug in your iPhone, and it will automaticilly download.
Yes you can as long as your iphone is connected to the same itunes account you bought the apps on.
Depends on the memory of the phone.
Paid apps such as HULU or NETFLIX
There are many of free news apps on the iPhone. Some of the top news apps are APMobile, The New York Times App, and NPR News iPhone App. You can find these in the App store.
The first generation iPhone can have any of the new apps. But the GPS enabled apps won't work as well because the 1st generation iPhone uses cell phone tower triangulation to get its position which is not as accurate as the GPS chip in the iPhone 3G. Other than that the software is the same.
you will have to jailbrake the phone ...
if i bought a new iphone i would definitely install iappworld.net free iphone app available on the appstore to help me find the best apps and games for free !