One of our users had some problems with a spinning hourglass on their Blackberry 8330. Upon invesigation, looks like its the Facebook App that was just updated. I made the connection when she said casually that she hated the new FB app, and then i read this article: http://www.bbgeeks.com/blackberry-issues/always-getting-the-hourglass-icon-on-your-curve-881105/
Deleted the FB app and her phone works perfect.