i m working with one application that have one functionality to select multiple images from android inbuilt Gallery/Camera .
Gallery/Camera
Gallery is open successful
Well, this is an old question, but I guess this might be still useful to somebody. I just released the source code for my multiple image selection activity. You can find it in the following GitHub repo:
https://github.com/derosa/MultiImageChooser
I hope it's useful for you!