Nickelodeon released an iPad app with full episode streaming back in February, but now an update has opened things up to the iPhone and iPod touch as well. Version 1.1 also promises more music videos and less crashing, among other tweaks. However, if you have an agreeable cable or satellite provider, then the ability to watch video on-demand is the headliner. There are a few episodes available without logging in, but subscribers to DirecTV, Time