kmfdmk

Also of note, the Barcode Scanner app on the Droid can actually CREATE QR2 Codes as well as scan them.

Open up the Barcode Scanner App.
Hit the Menu Button
Hit the Share Button

From there you can Share a Contact, Bookmark, or even the contents of the Clipboard. I haven't tested it, but I think it only generates a Bar Code for someone else to scan with their phone, and input the data you wish to share.

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Rusty, Moto Droid Nerd - How to Add Fav's to Google Nav | Droid LED Flashlight | Get the Most out of your Droid | Protective Cover that Fits in GPS Mount/Media Dock

Watashi

To use an MP3 as a ringtone, just play the song in the android media player and while it's playing tap the menu key and select "Use as Ringtone".