NY Times shifd

What does it take to produce a tool to seamlessly shift between mobile and Computer? See below.

• RFID Reader (USB) and an array of RFID Tags
• Mobile Phone (Sony Ericsson)
• Java (Phidget API/Library)
• PHP
• MySQL
• Scriptaculous
• Yahoo! UI Library
• Yahoo! Local Search API (version 2)
• Yahoo! Maps - Map Image API
• SMS (Email gateway)
• BBC, Yahoo and New York Times Feeds
• Guinness Beer
  

See the demo here. Via Duncan Riley.