It looks like USCC released 4.5 sometimes today. It's not available on the software download page and on their website.
BlackBerry Handheld Software v4.5.0.90 (Multilanguage)
Package Version: 4.5.0.90
Consisting of:
Applications: 4.5.0.66
Software Platform: 3.2.0.48
File name: 8130uAMEA_PBr4.5.0_rel90_PL3.2.0.48_A4.5.0.66_USCC .exe
File size: 72.93MBIt looks like this is the .66 release that most users have already. If so, I don't know if I want to make the upgrade. I've been there already and there were plenty of bugs.BlackBerry Handheld Software v4.5.0.90 (Multilanguage)
Package Version: 4.5.0.90
Consisting of:
Applications: 4.5.0.66
Software Platform: 3.2.0.48
File name: 8330uAMEA_PBr4.5.0_rel90_PL3.2.0.48_A4.5.0.66_USCC .exe
File size: 68.05MB