Windows: Though it doesn’t really add any new great functionalities, Windows XP Service Pack 3 (SP3) could be considered a must-have for all Windows XP users, as it contains the latest patches and fixes to ensure the maximum functionality, security and performance. The Service Pack 3 is compatible with all Windows XP versions.
Mac: ForkLift is a fast and robust file manager which should improve your workflow. Fitted with a Leopard ready interface, it is very intuitive yet offers enough powerful features like Spotlight integration, filters or archiving to handle your files seriously. You can quickly view all files on your volumes and devices and send them to other servers via FTP, SFTP or TLS all from ForkLift.
BlackBerry: Are you fed up with having to fend off calls from your boss, your ex or pestering money-lenders? If you have a Blackberry phone then you should definitely get your hands on iBerry Black & Whitelist, an application that allows you to block certain numbers from calling you. Best of all, when they try to phone you won’t hear a ring or feel any vibration.