Android users like to customize their phones. A lot. Not that there's anything wrong with that. And while the more obvious application of this customization fever is a community-authored ROM like CyanogenMod, a less drastic method of sprucing up your phone is a skin for your custom homescreen/launcher. Now there's an easy way to find new ones, with N3xGen Theme Manager.
Homescreen themes themselves have been around for a long time, but they had to be either side-loaded from a MicroSD card or downloaded from the Android Market. Since the Market's search tools are still pretty rudimentary, developer Bentobox decided to create an app that put them all in the same place. Currently N3xGen Theme Manager has entries for ADW, Launcher Pro and CyanogenMod's theme engines. Theme makers submit their creations to the N3xGen to be presented to the app's users.
The app supports both the free and paid themes from the Android Market, and its search tools can be broken down by platform, category (like Gingerbread-style themes) or even color. In a nice touch, you can set the filter to only free or paid themes. N3xGen Theme Manager is a free app, it's currently in its Beta release, though that hasn't kept it from scoring an impressive 4.7 rating in the Market. You can download it now.