iTunes 10.2.1 rolls out right after iTunes 10.2

iTunes is quite a money-baby for Apple. Right after the iTunes 4.2 which was supposed to enable sync with iOS 4.3, Home Sharing etc. the new update promises

• Improved Home Sharing. Browse and play from your iTunes libraries with Home Sharing on any iPhone, iPad, or iPod touch with iOS 4.3.

A good idea would be to continually update the software if you use premium services on iTunes. This keeps all your media and information safe. The update also fixes certain bugs, that were causing home sharing issues with the beta releases of iOS 4.3