Just finished my latest project. I created an Android app that allows for remote control of a robot over WiFi. It’s a spin-off of my BT Bot Control app (used Bluetooth). The robot, “Eddie” uses a Nano, the Adafruit CC3000 WiFi module and a Digistump motor shield. The goal is to get WiFi Bot Control also working with the Spark - it may do out-of-the-box, but I won’t know until my Spark arrives.
You can get WiFi Bot Control on Google Play
Details, pics and build info are up on my blog: WiFi Bot Control