Earlier this month, Sparrow released its gorgeous email client for the iPhone, iPad and iPod touch. Sparrow’s mobile app features a simple Facebook-like design that is light and responsive, with support for iCloud, Gmail, Yahoo, AOL and other IMAP services. Unfortunately, the app does not support POP accounts or push notifications, which are both big drawbacks for a number of users. A new jailbreak tweak called “SparrowPush” enables push notifications using IMAP idle, however, making Sparrow’s app a viable replacement for the stock mail client. SparrowPush is available now for free in the Cydia app store.