The new Raspberry Pi 2 is out today and stays at the same $35 price. A 900MHz Quad-Core ARM Cortex-A7 CPU with 1GB RAM. It will run Windows 10.
http://blogs.windows.com/buildingapps/2015/02/02/windows-10-coming-to-raspberry-pi-2/

http://www.raspberrypi.org/wp-content/uploads/2015/01/Pi2ModB1GB_-comp-500x283.jpeg
http://www.raspberrypi.org/raspberry-pi-2-on-sale/