iOS: The Chronic Dev Team has just released its new jailbreak too, Absinthe 2.0. The jailbreak works with the new iPad, iPhone 4S, and all previous models running iOS 5.1.1.
The jailbreak requires iOS 5.1.1 so if you haven't updated yet, do so. Once you're done head over to the Absinthe site and download Absinthe (Windows/Mac/Linux). The process with Absinthe 2.0 is pretty similar to previous jailbreaks with GreenPoison/Absinthe. Plug in your iPhone or iPad, launch Absinthe, click "Jailbreak," and wait for Absinthe to complete the jailbreak. Head over to the GreenPoison page below for download links and more info for each device.
Absinthe 2.0 has arrived! | GreenPoison


Windows: AniExplorer enables hidden animations in the Windows Explorer interface, letting you customize your file manager and give it a little pizazz.
Windows/Mac/Linux: Although there are a bunch of ways to backup your Gmail, including really easy to use Windows app MailStore, cross-platform program Gmvault takes the cake for being feature-rich and highly customizable.
Windows/Mac: The desktop Dropbox client has been updated with the ability to automatically upload photos from SD cards and smartphones directly to Dropbox. When you do so, you'll get a free 500 MB of space and if you continue to upload pictures you can get up to 3GB of additional space.