The Motorola Razr Ultra is my favorite flip phone, and this deal brings it down to a really enticing price point.

Alongside Calling Cards, Google also changed the mechanics of answering calls. In place of a single button for answering calls is an elegant swipe gesture: slide right to answer, slide left to decline ...

These quick performance tweaks can help restore its mobile muscle. If your Android phone feels like it's stuck in first gear, don't fret: You don't have to spend hundreds of dollars on a new phone.