Dan Frakes at Macworld details the steps for creating a bootable installer disc or drive for Mac OS X 10.7 Lion, which is important especially for Macs that debuted after the release of Lion (as they don’t include a downloadable version of the installer). While nicely thorough and practical, it’s also notable for a hair-raising maneuver to avoid re-installing Mac OS X and zapping your Mac’s PRAM. follow link
Undelete an iPhone Voicemail Message
There's no Command-Z in the Phone app, but you may be able to retrieve a deleted voicemail message: Open the Voicemail screen in the Phone app. At the bottom of the screen, tap Deleted Messages. To restore a listed message, tap it and then click Undelete.
- ExtraBITS for 13 February 2012 (13 Feb 12)
Action-Packed Instructions for Creating a Bootable Lion Install Drive