Just found this on their website, this is the brand new model shipped with free next day delivery.
The Raspberry Pi Model B+ is a credit-card sized computer board that's up and running when a keyboard, mouse, display, PSU and SD card with installed OS are added. It’s a miniature ARM-based PC which can run many of the applications that normally require a desktop PC, like spreadsheets, word-processing and games. It also plays High-Definition video. Raspberry Pi Model B+ is an Open-Source product designed to be supported by Internet-based user forums. As a starting point refer to the Official website at raspberrypi.org.