The Tech Report spotted a Dell employee uploaded a Google Chrome OS build with support for the Broadcom WiFi adapter in the Inspiron Mini 10v netbook. You can find it over here but you'll need an USB stick of at least 8GB because the file is a whopping 7.5GB.
You can download the image right from Dell's website, although you'll need a fast connection and a high-capacity USB drive to use it—the file size is a whopping 7.5GB. That's quite a bit larger than the 300MB Hexxeh build the Engadget guys played with.
The Direct2Dell blog post includes instructions for setting everything up, although it warns that the Broadcom Wi-Fi support is "highly experimental, untested, unstable." Detecting access points purportedly takes over 5-10 minutes, for instance, and both the Chrome OS connection manager and "underlying components" can crash. Folks who run into problems can always reboot and try again, though (rebooting involves pressing the netbook's physical power key, because Chrome OS currently lacks a reboot menu option).