Tom wants to know how to share his contact information digitally with his smartphone. Leo says that there's plenty of programs that can scan his business cards (the standard is called VCF or VCard) and convert it to digital data. There's also a "share card" feature in the iPhone to share a VCF Vcard file via Bluetooth. Android has these options as well.
There is also a great app called Full Contact that would allow him to take a picture of business cards and it will then interpret the data into a VCF VCard file for his phone. It uses humans to read the picture and input the data.
The chatroom also suggests creating a QR code which will give all the information with a simple scan.