Here's a challenge for Windows Phone users - Assign an MP3 file as a ringtone. WP7.5 user: 1) Get hold of a PC and download a program called Audacity to edit the file to no longer than 40 seconds and no larger than 1 MB and assign the RINGTONE genre in its metadata. This program isn't so easy to use so you may need to study the help. 2) Connect your phone to your computer via the USB cable. 3) Open up the Zune software, select SETTINGS > SOFTWARE > COLLECTION > Monitored folders. If your Ringtone folder is not already included in your list of monitored folders, add it by selecting the ADD FOLDER button. 4) Select your edited mp3 file and sync to your connected phone. 5) After you disconnect your phone from your computer, you can find and assign your ringtone by tapping Settings > ringtones+sounds > tap the Ringtone box and review the ringtones under the "Custom" heading. N9 user: 1) Start music player, browse to any song in your collection and long press. 2) In the pop up dialog box select "set as ringtone" Done! Smoked by N9!