I love the idea. Is the assumption that people will not take the time to do it themselves and/or maybe aren't good at it?
I posted this the other day as I believe wholeheartedly in the power of a written note:
Two of my favorite ways to ensure my employees (and others) know I care about them:
1. MMFI -I have this on a small post it note on my laptop. It stands for Make Me Feel Important. That could be a vendor, customer, or an employee. It's just a small, simple reminder to me to encourage others.
2. Two handwritten notes a month to random associates letting them know what they mean to me and the company and how they are making a positive impact on our business.