Android NFC Build Your Own NFC Launcher

http://www.readwriteweb.com/archives/weekend_project_make_your_own_nfc_tags.php

Brief summary

Joshua Krohn has built NFC Task Launcher.

• Enable / Disable / Toggle Wifi
• Enable / Disable / Toggle Bluetooth
• Launch any installed Application
• Connect to any known SSID
• Configure a new Wifi Connection and connect
• Configure and enable Portable Hotspot
• Enable / Disable Auto-sync
• Launch any Tasker Task (for users of Tasker)
• Changing Phone Ringtone
• Change Notification Tone
• Changing Ringer Mode (Normal/Silent/Vibrate)
• Changing Ringer Volume
• Changing Media Volume
• Changing Alarm Volume
• Changing Notification Volume