Lets have a look at the stuff that counts, shall we?
iPod Touch / Zune HD
GPS sort of (wifi) / no (apparently)
Radio no / yes
Audible Books yes / no
subscriptions no/ yes
Email yes / no
instant messaging yes / no
Calendar yes / no
maps yes / no
facebook/twitter yes / no
Apps 75000 / 9 or so
games 21000 / 7 or so
Screen 3.5 LCD / 3.3 OLED
lets compare windows mobile devices shall we? (there are 10s of thousands of them)
GPS sort of (wifi) / Yes, Assisted, bluetooth, YOU NAME IT (even usb)
Radio no / yes (TONS of devices including Touch HD and Touch Pro)
Audible Books yes / YES (choose from 10+ programs)
subscriptions no/ yes
Email yes / Yes (it was built for MS Push email)
instant messaging yes / Yes (every protocol and messenger possible)
Calendar yes / (yes, even syncs with MS Exchange)
maps yes / (every type possible, google, google earth, tomtom, garmin,iguidance, igo, etcetc)
facebook/twitter yes / Yes (either deticated app or browser)
Apps 75000 / millions publicly available and privately
games 21000 / i would say Thousands
Screen 3.5 LCD / any size from 1" to 4.5" all resolutions, VGA, SVGA, WVGA, WSVGA (FFS even the HTC Universal from 2004 had a VGA screen, the ipod only has a POS 480x320 which isnt even a 4:3 or 16:9 resolution)
apple products arent that superior sorry.
the Zune HD has only been out for a very limited time, the iphone when it came out 2-3 years ago, didnt have 3G, 3G phones with video calling at the time had been out for 4 years prior to the release of the iphone.