The Nokia Software Updater for Mac is a basic application for updating device software. 

Update March 21, 2012: Nokia Software Updater 3.0.671 for Mac OS x includes the following:
•    Support for Nokia Belle.
•    NOTE! Nokia Belle update erases C: content. Please backup your personal data before the update.
•    New product support added. The supported products list: 5230, 5730, 5800, 6700, 6710, C5–03, C6, C6-01, C7, E52, E7-00, E72, N78, N8, N97, N97 mini, Nokia 500, Nokia 5530 Xpress Music, Nokia 700, Nokia 701, X5, X6, X7-00

After you have updated your device software*, please give feedback on the forum. 

* As with any software update, please be sure to follow the on-screen advice before starting the update process to avoid possible data loss.