Searching for the perfect Jailbreak app in Cydia on the iPhone can be a frustratingly slow experience. Cydia Search from Planet-iPhones.com eases your pain by allowing you to browse through the plethora of Cydia apps by category, repository or author, all from the comfort of a desktop browser. If you know what you're looking for, you can search by name, description, author, version number or one of the many other search filters, which should make short work of finding what you're looking for.
Once you've located a package you're interested in, you can check out who wrote it, the price, the current version, which repository it's stored on, as well as view the actual Cydia entry as it would appear on an iPhone. While this isn't the first implementation of a desktop Cydia interface -- ModMyi also provides a searchable front end for Cydia on the desktop -- Cydia Search provides a fast, slick experience that's well worth checking out.
It's great for those people sitting on the fence as to whether or not they want to jailbreak their iDevice since it allows them to view all the programs, add-ons, tweaks and themes before they take the plunge. Likewise, if you're looking for a new app or update, Cydia Search will allow you to find what you're looking for before you head to Cydia on your device to download it.