Cydia's recent update made the jailbroken app store faster and brought about some other nice improvements. One of those new features was the ability to resume your place in Cydia after exiting the app, so you weren't forced to start over each time you closed it.
Though it was a major step up from the previous version, it's not real multitasking. Downloading something in Cydia typically renders the rest of your iPhone helpless, but what if I told you there was an easy way to enable true multitasking?