Jibi brought word this morning that the long-waited OS 4.3.1 update (that was mentioned together with BlackBerry Enterprise Server 4.1 Service Pack 5 back in November) will be re-branded as OS 4.5.
Beta releases of 4.3.1 have been quite visible for some time now. However, the decision to re-brand the OS as 4.5 is rumored to simply be a marketing decision, due to the number of enhancements being added to the OS.
Everything that is expected to be in the OS will still be there including the long awaited HTML email capabilities.
Expect this to drop somewhere near the end of February or even into March or April, depending on your carrier.
[ Source ]