If you just need a workaround so you can access other, non-voice-memo features through iTunes, such as backup, music sync, app sync, etc., then follow this procedure:
2. fire up iTunes
3. open Preferences (Edit > Preferences)
4. click the Devices tab
5. select “Prevent iPods, iPhones, and iPads from syncing automatically (see attached)
6. Click OK
7. plug in the iPhone.
It will still backup the device, but what you do from there is up to you. It will not get your voice memos transfered to the PC, but theoretically, you should be able to go to the Music tab when you click on the iPhone and select Sync Music, but deselect the voice memo option.
Until a fix is released, use one of the other workarounds to get your memos copied to the computer.