The Spark Core from Spark Devices is an Arduino-compatible, ARM processor-based Wi-Fi development system that greatly simplifies the job of adding wireless Internet connectivity to your gizmo and gadgets. For software development, it uses the popular Wiring software platform.
The Spark Core Kickstarter project just closed June 1st, with a huge reception: Over 5,500 backers pledged $568K to project, wildly exceeding its $10K funding threshold.