My latest toy to play around is an Android Mini PC MK802 from Rikomagic. I like the RaspberryPi but from my point of view the missing wireless capability is a big disadvantage of the Pi. A very cool feature of the MK802 is the attached HDMI plug, no need for an additional cable. Only a power supply is needed.
At the moment I don’t know any use-cases of the MK802 but it’s nice to have a Android device which is only a little larger than an usb stick.