After months of speculation, Microsoft’s new Zunes are official, with two new models and a bevy of new software and features.

Leading us off is the new full-sized Zune 80, so called because it sports an 80GB hard drive. Available only in Black for the time being, the new Zune 80 will retail for $249. Next up are the smaller flash-based Zune 4 and Zune 8, packing 4GB and 8GB of storage, respectively. These will be available in Pink, Red, Green and Black, and will be priced at $199 and $149 for the 8GB and 4GB versions.

All the new Zunes sport a “Zune Pad”, which is a touch-sensitive replacement for the four-way directional button on the old Zune (renamed the Zune 30.) It still only functions as a four-way pad though, no scrollwheel or other gesture-based action here.

More significant is the new software that will be powering these Zunes. The new Zune software allows for wireless syncing with your PC, and the Zune’s much-maligned “squirt” feature has been tweaked to remove the 3-day limitation on received songs. But, they can still only be listened to 3 times. In addition, the new Zunes support H.264 and MPEG 4.

On the desktop, the Zune software has been rewritten and the new Zune Marketplace now offers podcasts as well as music videos. In addition, over 1 million DRM-free MP3 tracks will be made available for purchase, and there will be a brand new “Zune Social” area where members can personalize and share music, pictures, playlists and so on. Users will have a Zune Card to identify them online.

The older Zune 30 has not been left behind, and will receive a software update to support all the same features of the new Zunes.

A release date has not been revealed as of yet.

UPDATE: zune.net has been updated to reflect the new models. The new Zune line will be available in November.