Good news for the jailbreak community as Cydia is now back up and running. Along with many other companies, the alternative app store for iOS devices has been down for several days due to Amazon's highly-publicized E2C Cloudfront server outage.
During this downtime, Cydia suspended all downloads, purchases and updates. Users of the jailbreak app store were greeted with a notice that all activities were down. The app repository came back to life last night, and everything is back to business as usual. Woohoo!