BrickHub for Windows 8
Made the jump to Windows 8 yet? No, I haven't either; I'm not sure there's much point on a desktop machine. But if you've just bought a new laptop or Surface tablet with Windows 8 on it, you'll want to take a look at this app that hooks into Brickset's web services.
Brick Hub is a Windows Store app allowing the user to browse information about all old, new and forthcoming LEGO sets and LEGO themes by utilizing online web services. It provides access to set pictures, set information as well as downloadable instructions for each set (where available). Furthermore, it implements searching through the Windows 8 Search charm. And, it allows the user to associate his or her's Brickset account to store and modify personal owned and wanted lists. Finally, it facilitates sharing of set information with other apps and people through the Windows 8 Share charm. You can download it from the Windows Store.