BlackBerry OS 4.5... Why Bother?

Yesterday afternoon I received a text message from Verizon telling me I could update my BlackBerry OS to version 4.5.  I looked and I was on version 4.3.something and decided to give it a try.  For what it's worth, the update can be had at http://vzam.net/blackberry

I searched the web and found positive reviews that talked about HTML email, improved AIM, document viewers and not a whole lot else.  After installing the update here's how I found it affected my (minimal) usage.

• Browser - No noticable difference
• Email - No difference
• Games - My solitaire stats were gone (probably a good thing) and a typing tutor called "Trooper Typing" was installed.  It gets old quick.
• Documents To Go - This was installed but I don't really know what to do with it.  I use Open Office and I imagine this works mostly for Microsoft Office documents.
• UI - I heard there were updates to the themes but I can't find them.  I did notice that the battery icon got smaller but I'm not sure if that's an improvement.
• MP3 Player - This had some slight UI improvements.  The biggest being the addition of a STOP button.  It's still pretty to navigate but it is improvement.

I think I failed to mention that the download (70MB) took 2.5 hours.  That would normally take a few minutes on my connection.  That could be the biggest contributor to my disappointment.