Model A or Model B?
All of the first units to be produced are the $35 Raspberry Pi Model B. These are the more fully featured versions of the Raspberry Pi. The main difference from the Model A is that they include an Ethernet port, and 2 USB ports.
We’ve been working hard at cost reduction over the last few months, and we’ve been able to make one significant change to the Raspberry Pi lineup. The $25 Model A has been reworked to include 256MB of RAM – double what we were originally planning to offer – and will be going into production immediately.
We are launching with Model Bs as there has been a much larger demand for them from the community. This first launch is aimed at software and hardware enthusiasts, makers, teachers and others who want to build exciting things with the Raspberry Pi before the official educational launch, which will happen later in 2012.
This means that when we launch into the educational market, there will be an experienced community of people using and making things with the Raspberry Pi. Software will be more mature and free of obvious bugs, and easier for children and educators to use.