Sync2S3 allows you to synchronize and backup your files online easily and securely with the Amazon S3 storage service. Amazon rates are quite inexpensive and you only pay for what you use.

Tangerine is an application for OSX that hooks into iTunes and creates playlists based on the beats per minute (BMP) of songs in your library.

During my recent trip to SXSW, Dustin Diaz introduced me to a new and powerful editor for Windows. E-TextEditor is a TextMate clone for Windows that shares many of the features found in its Mac father. Features like support for TextMate bundles, commands and bundles could make this a nice option for those of us who have to develop on both Apple and Windows platforms.