Windows/Mac/Linux: Mozilla has released a new preview version of their desktop email application in the form of Thunderbird 3 Beta 4, adding a new email search, smart folders, and more.
Internet Explorer: Jealous of some of the nifty extensions and Greasemonkey scripts that Firefox users get for prettying up their web-based printouts? Internet Explorer users now have Printee, an IE addon that helps clean up cluttered web sites for printing.
Windows 7 only: The latest DivX tech preview adds support for MKV video files to Windows 7, so you can use them in Media centre, Media Player and even show thumbnails in Windows Explorer.
Google Sync was released earlier this year and helped you keep your calendar and contacts synced between your mobile phone and Google account. Now they’ve added support for your Gmail account to be pushed to your phone.
A friend replaced her laptop’s battery after only two years because it wouldn’t hold a charge. I suggested she shouldn’t keep her laptop always plugged in, but I wondered—was this outdated geek lore, rendered obsolete by modern batteries?
Linux: There are lots of music and media managers for Linux desktops, and the Music Applet controls almost all of them. It places helpful notifications, button controls, track time and rating data in a convenient corner for your listening pleasure.