With a focus on improving compatibility with the MacBook Pro with Retina Display, Global Delight has released Voila 3.3, addressing a number of bugs specific to Retina display screenshots in the screen capture utility. Also fixed are crashes related to multiple monitor setups and a video corruption problem on the MacBook Air. For those with the MacBook Pro with Retina Display, note that you can set different export formats in Voila’s Export preferences; that way you can easily export more-compact formats when the Retina display screenshots are too large for email or a blog post. ($29.99 new from Global Delight — with a 25% discount for TidBITS members — or the Mac App Store, free update, 13.8 MB, release notes)
How to Make an iPhone Screenshot
Want to take a screenshot of something on your iPhone or iPod touch? Press the Home button and Power button briefly at the same time, and an image of your screen will be saved to the Photos app (and will sync with iPhoto when you next connect). Don't hold the buttons too long or your device will either power down or reboot.