I have the NuShield DayVue screen protector on my iPhone 5 and iPad 2 and I love it. It has a glossy finish, easy to install and lets me read the display when I am outside in sunlight. You can find them at www.nushield.com
I am a huge fan of the Power Support ones which are sold in Apple Stores. They last a long time - mine has been on my iPhone 4s for over a year and it still shows no signs of wear. They are also very clear to look through when looking at the screen and are as trouch sensitive as the 'nude' glass. However, they do change the glossy display into a slighly matte-finish one which I actually prefer as it means that there is less reflection. An excellent product.