No. You can download any iPhone app from the app store and run it. If it is not made for the iPad, you can view it at the 1x resolution, which runs in a screen the size of the iphone, or you can blow it up to 2x, that covers most of the iPad screen. You won't be able to take advantage of the iPad's enhanced resolution, and it will look a bit blocky, but it will work.
It would probably smaller, unless it was formatted for ipad and iphone
Although iPads can download apps made only for iPhone/iPod Touch, the iPhone can only download iPhone or iPhone/iPad apps. Apps made only for the iPad do not appear on the App Store. Luckily most of these apps have an iPhone counterpart such as Angry Birds (iPhone) and Angry Birds HD (iPad only).
Yes
Just download the iPhone version. There is no native iPad version, but you can get the iPhone version and it should run just fine.
You download the app on the iphone, itouch, or ipad
Yes, if you log in to iPad App Store with the same Apple ID as with which you bought the app on iPhone, you should be allowed to download it for free.
No, but you can download iPod/iPhone app onto the iPad and play there (double the size)
iPhone Apps, including games, work only on iPhone, iPod Touch and some work on the iPad.
iPad and iPad 2 comes with maps that are on all iOS devices, you can also download google earth for iPad, iPhone and iPod Touch.
You can download the FaceTime App in your Iphone, Ipad, Mac or Kurio tablet
No, you can't make phone calls on an ipad. If you want to phone on a iPad, you should download third party apps like shype, line 2.
No, it's only for the iPhone and the iPad You can download it through the related link.