The annotation screen lets you add free form text to your voice notes and to share your notes over FTP, email and Bonjour. Tap the action button in the lower-left corner to view the sharing menu. The play button in the bottom center launches a full-screen player, complete with volume control and scrubber.
At this time, Voice Notes supports only SMTPAUTH email. Set your sharing preferences in the iPhone's Settings > Voice Notes screen. The Settings screen has tips on using FTP, Bonjour file sharing and email. Use FileCatcher to catch Voice Notes from your iPhone on your Macintosh.