Cloud storage sharing is the latest jailbreak app on cydia now and called as CloudyShots will allow you to share your iPhone screenshots through Cloud. The app uploads the iPhone screenshots automatically to the Web which then can be shared.
CloudyShots is based on Cloud App, which is a popular cloud storage service. Using the API from Cloud App CloudyShots makes sharing images simple and automatic.
After installing the CloudyShots, you will have to enter your Cloud App’s login information. You can have your account for free with the Cloud App by clicking the link here.