Wow. This got pushed onto my iPhone with iOS4.1 - but I hadn't looked at it yet.
What a piece of crap - this software is definitely not up to apple's usual standards. I would wager it didn't come through the same teams as work on iOS proper, and I'm surprised it was approved in the first place, for several reasons:
1. the font is ugly as hell
2. All the text is black on DARK GREEN which renders it hard to read
3. The slider switch controls only seem to respond to tapping (!!)
4. When I registered my usual apple ID email address, I then had to re-authorise it(?)
5. The graphics (stupid bloody banner things on every button) make it hard to work out what is and isn't a control
There are other points, but the overall point is this application is a miserable addition to the iPhone. I've hidden it away in a distant folder in a distant corner so it doesn't offend my eye (even the app icon sucks).
Has anyone used the feature?