I'm not good with numbers dealing with data so I had a question to ask about the iMovie app. I moved my data plan from unlimited to 2GB/month. If I were to buy this app and made a small movie, perhaps 1 or 2 minutes, and then try to email or MMS it over the 3G network, how much kb can I expect to use doing that? I like movie editing and want to play with this app but not if it takes practically a gig just to send a video. Thanks.