Blackberry OTA Downloader is an alternative way to install programs to your blackberry other than OTA (over the air).  Basically, instead of navigating to a website on your blackberry browser, you just input the URL in the software, obtain the .cod and .alx files, then drag and drop them into your SD card on your blackberry.  Then, while on your blackberry, you can navigate to the file and it will install your applications.  This software is useful if the website that you have to go to doesn’t have a mobile site, and it will also save you data for those of you who don’t have an unlimited data plan.