contacts - couple suggestions

First suggestion:
Let us create folders for contacts. Here are two ways that I would use them:
  1. Location based folders - for those that travel frequently
  2. Seen / ToDo tracking
Second suggestion:
Sometimes I am surfing reviews or Ads and see someone that sounds interesting only to discover that I have already put them in my contacts. It would be real neat if posts by people in your contacts had their names highlighted somehow. This would help me find people I havent discovered before.