Apple released new version of iTunes 9.1.0 for Mac and Windows users, which brings many features such as syncing supporting for iPad and customizability of Genius Mixes.This update iTunes 9.1.0 is around 93 MB in size for windows systems and 102 MB in size for Mac OS X systems.
iTunes 9.1 comes new features and improvements include:
This update is compatible with Mac OS X 10.4.11 or higher and Windows 7, Vista as well as XP with SP2 (Service Pack 2).
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Note: Those who are using blackra1n for Jailbreak to boot, here is a fix for iTunes 9.1.