No, OS 4.5 won't be a newly issue retail store device.
DocumentsToGo will be in the OS upgrade as long as you select that option in the upgrade process.
4.5 is right here, for the 8330.
http://www.blackberryforums.com/gene...ilanguage.html
EDIT, well I forgot US Cellular had taken down their 8330 version of 4.5, but it is "out there".