Did you have the same situation? everytime log in the Google + with your tablet? Why i fell the website color and some design is changed. I like the portrait mode that can see more contents. My tablet PC is iPad.
iPad runs IOS as well as the Iphones, same operating systems. IOS applications run on iPad and iPhones. Its the same chipset and the iPad even even allows you to run iPod designed apps in double the resolution (although because it never usually looks as good as a native iPad application). So yes IOS applications run fine on iPhones and iPads.