Felt for iPhone - Handwritten cards for the modern world
Jutsu - Jutsu is an app that scans your handwritten notes and makes them searchable.
Thankster - Automagically send hand written cards
Thankbot - Drive more business with handwritten notes
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
Inkpact - Send genuine handwritten messages in just a few clicks