This might be a stupid question but is it possible to have different categories for iPhone contacts? I ask because I'll be getting the new iPhone 3G when it comes out (and as soon as it can be used on T-Mobile). I have a separate palm pilot right now with over 400 work contacts. I want to be able to search my contacts on my iphone without going through all of my work contacts. Is it possible to make different categories and search through each one independently? Any news on being able to unlock 3G iPhones?