The GameStick is an upcoming console that is pretty similar to the OUYA. An Android-based console with a small USB-looking stick which plugs directly into your TV's HDMI. The stick is also packed tightly into the controller.
The GameStick is looking for funding through a kickstarter program. The aim is $100,000 and already $50,000 have been raised within the first day. The system has an Amlogic 8726-processor, 1 GB DDR 3/ 8 GB Flash and runs the Android's Jelly Bean. The console is priced at $80.
It's cheaper than the OUYA and smaller. The only thing separating the two consoles could be the software support from developers. Seeing the OUYA needed and raised $6 million, whereas the GameStick only needed $100,00. Who knows how it pans out.