Windows: Is Messenger too old-fashioned for you? Are you looking for a more original way to chat with your friends and meet new people? Then you have to try IMVU, a fun IM client in a 3D environment. Join actual chat “rooms” where you’re not just a nickname, but a nice 3D avatar that you can freely customize with new clothes and accessories.
Mac: If you’re a big user of Megaupload.com or Rapidshare.com, then JDownloader might help you manage and organize your downloads in a far more convenient and faster way. JDownloader is an open source, platform independent download manager. It’s optimized for those that use one-click-hosting and sharing solutions such as Rapidshare and Megaupload including for those that do not subscribe to the premium services.
Pocket PC: With so many phones equipped with cameras these days, it makes sense to be able to view, manage and edit them on the move. XnView is perfect for all three of these things, containing five different viewing modes, tools for ordering your pictures more effectively, plus a bevy of editing functions.