Motorola Atrix 4G :: How To Do Video Calling

I am new to both the Atrix and smart phones and have a few questions I was hoping somebody else had already figured out.

1)I installed Skype on the phone and it seems to work fine; however, I cannot figure out how to do video calling. I assumed that the front camera was there for the sole purpose of doing video to video calls; however, when my wife tried to make a video call to me I didn't receive video (she called my from her computer, on the exact same WiFi router).I went through every setting I could find and was unable to locate anything that would enable video calls.

2)I have noticed that my cellular reception seems weak compared to my wife's Motorolla XT 720.She regularly has 1-2 bars more than me in the exact same place.Any ideas why and if there is anything I can do to improve my cellular reception?

3)Whenever I get a new computer I like to remove all the bloatware installed by the manufacturer.I'd like to do the same on the phone, but I know so little about Android that I'm afraid I might remove something important.My phone is factory unlocked (but not jail broken) and seems to have a lot of AT&T junk on it that I really don't want/need. Are there any installed apps that I'd be better off leaving alone, and are there any that I really want to make sure I ditch?

4)I made the mistake of adding my facebook account when I set up my MotoBlur (another yuck ).Unfortunately I'm overseas for a couple years, and have no desire for these people to show up in my contacts when I'm trying to make a phone call.Is there any way to delete all my facebook contacts from my telephone contacts?