I know that if I make a video, and watch it while the video is playing I can take snap shots of moments in the video by pressing the home and power buttons at the same time.
I know that I can clip my iphone to my back pack and walk and tape videos like a spy cam.
I know that black is the better color because the camera is less noticeable.
I know that if I put my ip4 in an otter box type case I dont and haven't gotten one drop call since august 2010. go figure.
I know about the FC8 battery pack I found on ebay (in white) does that same thing with no dropped calls plus gives my iphone 4 a 72% extra charge.
I also know that phones with sim cards are less likely to be wire tapped unlike verizon, notice verizon has sim card type phones, but wont admit that, and their iphone doesnt have a sim card.
I also know that if you get any cellular phone or any electronic device for that matter, wet, if you turn it off right away and let it sit for 2 weeks it will be like you never got it wet. I dont suggest you test that, but its happened to me and I knew that and did that and my device was fine.
I know from experience that having a recording device app, can help in devorces, at work at the doctor (being u need to record what the Dr says so you can play what they say for future ref or other Dr's. It is not illegal to record other people if you are recording them secretly. It is illegal to record if your device is in a room and you are not.
I also know last but not least there is no such thing as a dropped text.
Every person should know that the police responds faster if you dial 911 and dont speak.