The folks at Arduino.cc are set to release what appears to be the Arduino Uno usurper. The Arduino/Genuino 101, in addition to being heaps faster, also has built-in Bluetooth LE and a 6-axis accelerometer. Co-developed with Intel, the board uses their Intel® Curie™ Compute Module. While not yet released, scuttlebutt says it’ll cost about the same as the Uno.