You can throw whatever APK files into it, and connect your phone with debugging enabled, hit install and It'll install all the applications in the list.
Currently, this is just a prototype, but it will eventually get better, and I will add more features. For now, It should work for just a simple batch install.
If you have any problems, just shoot me a PM. Otherwise, I think this should be dead simple to use. If you have any suggestions for what I could add, Post it here.
Oh, and, If you wouldn't mind, Shooting me some donations will ensure you'll get more of this stuff!