It's now even easier to switch from Microsoft Exchange to Google Apps

Google Apps Migration for Microsoft® Exchange is a new server-side tool that migrates your company's email, calendar and contact data from Microsoft Exchange to Google Apps. With the tool, migrations are:

• Easy: set it up in just 4 steps

• Efficient: select the combination of mail, calendar and contact data that you want to move, with the option of doing so in phases

• Fast: migrate hundreds of users at the same time

• Painless: employees can continue to use Microsoft Exchange during the migration without interruption or any involvement on their part

For small or ginormous organizations on Exchange 2003, it's worth a look. If you're already on Exchange 2007 or 2010, I'd stick with them for the time being. Medium-sized organizations are the tricky ones.