Here's more information from a message on a Google Group, forwarded by a friend of mine. The group is private (members-only), but the message seemed like one the group would want to spread...
Celebrate and Cultivate The Sunshine Mile
Broadway Blvd. between Campbell and Country Club
Saturday, March 2nd, Open House 1-5pm, Festivities 12-5pm
Imagine the Possibilities and ask questions on Saturday, March 2nd from 1-5pm at an Open House at 2419 E. Broadway (the former Panda Buffet) to showcase the property which is available for rent to non-profit organizations for 25% of market value. Information about other such properties will also be available and representatives from The Broadway Coalition, the City of Tucson, and the Citizens Task Force (responsible for presenting a roadway design for Broadway to Mayor and Council) will be available to discuss being a part of the uniquely diverse and historic Sunshine Mile.
From noon-5, The Sunshine Mile Re-launch kicks off at 2610 E. Broadway with live music and an unveiling of the newly painted Sunshine Mile mural. Ward 6 Council Member Steve Kozachik and Demion Clinco of the Tucson Historic Preservation Foundation will be in attendance to say a few words. Select businesses between Campbell and Country Club will offer special discounts, refreshments, demonstrations and other surprises in honor of the day which also marks the start of a month long Scavenger Hunt making visitors eligible for fabulous prizes.
The Sunshine Mile is essential in creating a vibrant community. It embodies so much of what makes us proud to call Tucson our home, and its architectural heritage is an irreplaceable regional asset -- come celebrate and cultivate it.
Sunshine Mile Merchants- Jessica Shuman, Business Owner, Kismet 207-9994
Update (March 9, 2013): I've just added the photo. I snapped it on the morning of March 1st.