Read this if you want to install the emulator sios ( SNES emulator, aka not the one in the video, although if you follow these steps you can do the same with any emulator from emu4ios) as a normal app in itunes!
I was able to download the sios.plist off the link in emu4ios.net
via my pc and then open the plist to find the link to the actual sios.ipa file for itunes. Here is the link to the original ipa : www.weebly.com/uploads/2/1/2/8/21285986/sios.ipa
Once you have it on your pc/mac, drag it into itunes and plug in your device. Then set your date to 2012 (on your ios device) and click install/sync the app. You will then have the app forever in itunes.
Warnings: It will fail to install if you do not set your date to 2012. You may get a pop up warning on your device asking if you trust the developer to continue. I am not responsible for any problems you may encounter as I am not the developer/owner of the app.
Hope this helps people.