New Look and Feel and Improved Usability.
Virtual Machines Catalogue.
One-click Virtual Machine Aliases:
Resizable Main Window.
Auto-Adjusting Screen Resolution.
Drag and Drop files and folders between Windows and Mac.
Read/Write BootCamp partition.
Boot from BootCamp partition.
Parallels Transporter Beta bundled.
Coherency. Shows Windows applications as if they were Mac ones.
Improved graphic performance. Up to 50% on different applications.
Connect/disconnect USB devices schema improved.
Up to 5 Virtual NICs.
Enhanced Shared Networking Mode.
Switch between networking modes on-the-fly.
Transparent mapping of Command-AZXCV key combinations.
Power On/Power Off/Suspend/Resume/Pause animation.
Shared folders configuration on-the-fly.
Drag and Drop CD/FDD images and folders to the Parallels Desktop statusbar.
And dozens of other not that evident enhancements.

Parallels Support Forum
Parallels Desktop for Mac build 3036 Beta