In Depth Review of iOS 5

"Apple's latest reference release of its mobile platform, iOS 5, isn't going to leave users wondering if they should upgrade. It's free, it has no real downsides, and has no competition among iPhone, iPod touch and IPad users. But here's a look at what's new and why it matters."

Now that iOS 5 has hit, it's not a bad idea to get a review of the features you will soon be using. This is a pretty informative quick read (only four pages) of information that will assist you in getting the most out of iOS 5. I haven't updated yet, so if you have, what features do you like best? Worst? Thoughts?