Apple has released a new software update for the seventh-generation iPod nano. Version 1.0.2 of the iPod nano (7th generation) software reportedly addresses issues with EQ and microphone support with the Apple In-Ear Headphones and makes Bluetooth improvements, tweaks that are obscure enough to be non-obvious in initial testing. The update is available by connecting the iPod nano to iTunes via a USB connection and selecting the Check for Updates option…