There is a certain freedom of abandon that Halloween provides. It is a time of playfulness and wicked fun. Corporate web companies have also joined in on the fun as a way to strengthen customer relationships and become more personable and even a bit silly. Google has a history of changing it’s corporate logo on holidays or commemorative events. Below are some samples of corporate playfulness / relationship-building design-gusto for the Halloween season.
Mailchimp 2009
Other examples of Halloween / Holiday corporate logos for the web.
The Motorola Droid smartphone on the Verizon Wireless network received some good reviews due in part to the updated Google Android (2.0) mobile OS. The Motorola Droid was the first phone to use Android 2.0. Sprint Nextel and T-Mobile USA also use Android but have not upgraded to the new software.
Mozilla’s web browser, Firefox, is gaining on Microsoft’s long dominant Internet Explorer. The Firefox browser has a built into tool that checks for new versions every 24 hours and reports back to a central server with the news. 
The US Department of Defense is making a serious effort to improve open-source adoption. It will be issuing new guidelines to make it easier for the department to use open-source software. The department has stated that open-source meets the purchasing requirements set forth by the department and will help them better identify and eliminate threats and become more agile to changing requirements. 
Facebook gave it’s gift shop an overhaul. Music will now be one of the many virtual-goods sold in the Facebook online store. 
Jack Dorsey, co-founder of Twitter, has been tinkering with the iPhone.