Transfering files via Wifi between PC and Android using Windows Explorer

No need for cables, no need to install anything on your PC. Just open Windows Explorer. Uploading files into your android device automatically makes it accessible by both the default android apps and any third party apps. On the iPod i have, if i were to try to do the same and run an app that lets me upload files to it via wifi, it is not visible to the other apps. Hence, if i try to upload an MP3, i cannot add it to the iPods playlist, the only app that has direct access to it is the app i uploaded to.