Originally, LemonWash is car wash service just like Cherry http://cherry.com/.
LemonWash is an Android project with a back-end built with PHP. It's the winner of Parrot's hackathon.
The project was built during the Parrot's Asteroid Hackathon in May from 11st to 13th in Paris. 
Parrot's Asteroid is the first car receiver with web service apps, voice recognition and hands-free telephone.
Asteroid OS is Android 1.5 API level 3, this car receiver supports Andorid application just like Android smartphones.