The multiple limitations are there not really because we think we need to limit it in multiple ways cause people would keep using it if there was just one limitation, but because it makes it much easier to hack if there was only one. The dev mode is pretty easy to hack to make it force it to go fullscreen so we also have to kill the audio and video.
StreetDeck was already hacked when we first released it so we had to enhance the security and add multiple timeouts to it.
Finally, if you have already purchased StreetDeck and you really are developing on your home machine and find you need to run it in non-developer mode to test it too, first prove it by uploading a complete skin or DigitalMod to the appropriate place on mp3car.com wiki. Then forward your mp3car reciept for StreetDeck including your order id from the e-mail address you registered under and a link to the stuff you developed to
chuck@mp3car.com and I will generate you an extra license for development use on your home machine.