Companies with an online store traditionally face a dilemma: both the retail and the accounting applications need to access the data describing products, customers and orders. Rarely are these two business processes colocated on a network map. Online retail occurs on a webserver in the cloud, while accounting occurs either on a local machine or on a server in a company's local network. Switchback took on the task of connecting the accounting (Quickbooks) and retail (D7 Commerce) pieces of online commerce.
On the 7th, I celebrated the release of Drupal 7 in Jackson, MI, in the company of the Commerce Guys and a few other developers, designers, and drupalgangers. Rubbing elbows with fellow Drupal-lovers is always a good time, especially when you're celebrating something as exciting as the release of Drupal 7.