Here’s a little known fact about the OS X Lion installer — it self-destructs after it completes the OS X Lion installation and if you are on a limited or capped ISP data plan that sucks. Especially if you plan on upgrading more than one Mac in your home or office. Luckily, you don’t need to download the OS X Lion installer on each computer and waste precious data or time.

You only need to download it once if you follow this quick and easy tip before installing OS X Lion the first time.

Apple’s new iMessage simply rocks and it takes messaging on your favorite iOS device to a whole new level. It offers some new features that SMS cannot beat like multiple address support and selectable caller ID.