According to the Roman Catholic Church, the Bishop of Rome IS infallible - but only in specific cases. The current furore over remarks made by the pontiff about Islam does not fall into this category.
What intrigues me most about this, though is this bit:
It wasn't until the 19th Century that moves were made for a formal acknowledgement that the Pope was faultless. In 1870, the First Vatican Council proclaimed that the Pope was infallible
Why did they not notice up to that point? Was it something that never needed pointing out in the past and in 1870 they just decided that the public needed a reminder? Maybe they were just checking the records and noticed that every time the pontiff pontificated in a certain manner, well praise be, he was right everytime. Those other times though, not so divinely inspired.