USPS Informed Delivery - Get an image of your mail before it arrives
Thankbot - Drive more business with handwritten notes
Amazon Logistics - Create your own delivery business. Amazon's UPS competitor.
Felt for iPhone - Handwritten cards for the modern world
Yazz - On demand delivery
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.