Visible crew/equipment: In the iCarly TV movie "iGo to Japan," the gang is riding in Kioko and Yuki's car when the Japanese comedians start arguing. In the shot showing Freddie putting his camera away, you can see several reflections on the side of the car. They are hard to make out what they are, but these are obviously the reflections of the crew in the background. If you look out the window beside Carly and Sam in the same shot, you can see how fast they are going past Tokyo. If these reflections are reflections of things in the city, they would quickly move away as they speed past. However, they stay put.
Visible crew/equipment: "iPromote Tech Foots": Carly buys a motorcycle for Spencer, and when Spencer puts his helmet on, you can see a boom mic.
Chosen answer: I don't know how to answer the first question but for your second question, there is going to be an episode after iPWV, called IDate Sam & Freddie which will deal with their kiss from iOMG. IParty with Victorious will not be related to IDate Sam & Freddie.
The I date Sam and Freddie proves that they are a couple.