There’s been a lot of talk about something called “Project Butter” during the Google I/O developers conference and unsurprisingly the whole thing doesn’t have anything to do with dairy products. Instead it’s what Google has labeled the under-the-hood improvements which keep Jelly Bean running — I couldn’t resist this line, I’m sorry — like butter.
Buffering tweaks, increased frame rates, a system which keeps rendering and touch input events in sync better, and touch prediction come together to make everything run just a little bit more nicely. (Yes, Jelly Bean actually tries to predict where you’ll touch the screen next.)