It can decompile and compile an android project. It's really easy to use and you don't need a PC, as it can do anything for itself. NOTE: After finishing a project (for example framework.apk) you have to reboot.
While using the app you can change the Platlogo.jpg and also tweak other apps.
Fully compartible with Samsung Galaxy Y. Full version can be purchased through Google Play.
Get it on Google Play Store or download the apk (FREE VERSION) from the post.
TO USE THE APP YOU NEED BUSYBOX INSTALLED