For those unfamiliar with the popular Super and Ultra Smooth Rosie mods, they are modified rosie.apk files that flatten the images of HTC Sense to improve battery life and performance. For those running newer versions of HTC Sense, keep your finger on the screen as you switch screens, and do it slowly. You’ll notice that HTC Widgets will kind of pop out. While it is very cool—when you notice it’s there—it does contribute to that bloat that many Sense fans complain about. And with the images flattened, it does help lighten the load up a little bit and may be enough to reduce any lag you are experiencing.
The big difference between Super and Ultra is that Ultra Smooth flattens the images completely, whether the screens are moving or not. On the other hand, Super only flattens the images while you scroll from home screen to home screen, but pops them back out when the home screen is still. While many people are still waiting for their HTC One X to even be allowed in the country, those already enjoying the HTC One X can grab up the Rosie love right now.
XDA Recognized Contributor hamdir has released the modified Roise .apk files for anyone who wants better performance or battery life from his or her device. The mods are easy to install—simply use your favorite root-enabled file manager app to switch out the old rosie.apk for the modified rosie.apk and reboot. However, the modified app does come with a warning from hamdir:
This will only work on ROMs based on the ruu file number included in the zip filename, therefore you will lose any mod applied to rosie, such as transparent app drawer or themes
So be sure you’re installing the right version, and make a backup in case of any problems or if you’d like to revert. Visit the original thread for more information, download links, and more.