Originally Posted by SteveO86 (Post 1311569)

What are thinking about is correct, but I am mentioning something different..

Technicially OS 4.5 is only suppose to be 4.3/4.4, they renamed it to 4.5 to keep it in sync with the BES Service Pack version (4.1.5/4.1.6). (supposibly BES 5.0 and OS 5.0 should be released around the same time, but we will see)

For the 88xx series, they skipped from 4.2.2 to 4.5, so technicially 4.5 is really 4.3 for the 88xx.

Some of the 81xx and 83xx had 4.3 while others had 4.2.2/4.2.1 so for them OS 4.5 is really 4.4

RIM re-branded it as 4.5 to make it sound better since it took them so loooong to release it.

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After you think about it... That is really confusing...

But I do remember hearing they were skipping from 4.5 to 5.0 on the current set of devices (88xx, 83xx, 81xx) we will see how that actually turns out though.