This thing is full of pointless UI weirdness. For example:

* None of the back buttons look like iOS back buttons or state where they lead.

* The tab controls are taller than usual, taking up room for no good reason.

* The open in Safari icon looks like nothing I've ever seen and it displays an alert view instead of an action sheet.

* The People view has a tabs on bottom and a segmented control on top. The segmented control is treated as primary (changes the entire view including tabs).

* It takes five taps to get from your stream to the posts of a particular circle.