Note: New SMS bubbles for your iPhone.
1. Rename com.apple.MobileSMS to com.apple.Chatkit inside the Bundles folder.
2. Choose two colors inside the Bundles/com.apple.Chatkit folder and rename them to Balloon_1.png and Balloon_2.png that lives inside the Bundles/com.apple.MobileSMS folder. You can skip this step if you want orange and cyan bubbles.
3. Put the entire Colorblocks SMS folder into your winterboard theme folder via SSH.
4. Open winterboard and tap Colorblocks SMS so there's a checkmark next to it and re-spring (press home button).
Shortlink: http://bit.ly/mD8bot (one click to select)