According to information on AndroidCentral, Thursday will see Verizon release Android 2.1 to Droid users, in batches of 250,000. However, if you can't wait, the option to download and install yourself earlier is available. Verizon posted a pdf detailing what comes with the latest update here.
The picture on AndroidCentral shows that this update was approved only yesterday. Sources indicate that this kind of update will take several days to get to everyone, so you may have some time to wait if you choose to let Verizon do it for you.
Some of the new features in the new version AP: ESE53/BP: C_01.3E.03P
- Pinch-to-zoom is now available when using the browser, Gallery, and Google Maps
- New Weather and News application plus widget.
- New support for voice-to-text entry.
- Google Maps update
- Free Yahoo!® Mail
For a more detailed list of new features and improvements, here is the link again for the Verizon update.
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