Blackberry Desktop Manager 4.5
Great news, Blackberry has just updated their already great Desktop Manager. It is mostly a cosmetic update of the previous Desktop Manager. If you have not used your Desktop Manager before, use it. Install the disc your phone came with or click here. An awesome feature of the Desktop Manager is the Backup and Restore tool. With this you can back up all of your information from your Blackberry and save it in case you need to load it onto a new device. 
A great addition to the current update is the ability to support Lotus Notes and Windows Mobile. There are several other small updates, and you could see a full list here. Desktop Manager does other things like helps load applications (for those that are not available OTA). It also has a Media Manager and you can change the options to Synchronize your data with your computer.
Bottom line is if you have a Blackberry and you have not used it try it. Blackberrys are so easy to use and the new Desktop Manager makes it a little easier. If you have any questions e-mail me alex@thephonestoreinc.com. You could also contact us here.