Saurik released a major update to Cydia that includes a new Manage Account feature. Though it won't help you jailbreak your device, the new version of Cydia will make it easier when you need to re-install your favorite jailbreak applications. Similar to the Mac App Store, this Cydia account lets you keep track of both downloaded and purchased applications. This is a much-needed feature that iOS 4 unfortunately still lacks.
The next time you jailbreak your iOS device and launch Cydia, you will be able to login to your account and easily install your tweaks and apps without having to search the Cydia repositories. The login for this feature is tied directly to