Hi, I recently made the jump from an old Katana LX flip phone to an old iPhone 3GS that a family member gave me (iOS v4.3.3). I never used data in the past on my personal phone so I had no need for a smart phone...I have a separate Blackberry for work. Now I'm being put on a stipend plan at work so I will be using one phone, hence the addition of the iPhone. What is the best way to handle my contacts? I have an Exchange account set up that brings in the contacts from work. What about my personal contacts? Should I manually enter them in the phone? Should/Can I use Google Contacts? Will they sync? Will they conflict with the Exchange contacts? I've been doing research, but I'm still not sure what approach to take. Also, should I upgrade to the latest iOS? I read that many people had issues with the newer versions. What are your thoughts? Thank you.