I downloaded the app for the Corriere della Sera the day that my iPad arrived and it works beautifully. The app provides you with a complete digital edition of the newspaper, which is unusual, free of charge. The first release didn't have thumbnails, but they fixed this the next day with version 1.1 (I suspect they saw La Repubblica's app and realised their mistake).
I like the crisp rendition of the pages of the newspaper, the ability to tap once to zoom-in on an area then tap twice to zoom-back out to full-page format. You can flip through pages using gestures, and you can zoom in and out by pinching and pushing. This is how all newspaper apps should be designed. Bellissimo.