The 2009 Boston Marathon will be on Monday, April 20. Registration for amateur radio volunteers for the has already opened. If you would like to volunteer, follow the instructions on the following website:
Assignments vary greatly and equipment needs will vary with the assignment that you select. Generally, at least a 2M/440 HT is required, with batteries to last the entire day, but please refer to the assignment details or ask the event coordinators (see website address above for names, email addresses and phone numbers). All Boston Marathon volunteers receive a light jacket.
Thanks, wma.arrl.org