The world’s first Google netbook goes on sale on June 15. Well actually, it’s available on Gilt.com (in the “men” category) today. The Samsung Chromebook 3G isn’t discounted at $499, which is still a lot for a netbook that only runs an experimental operating system with a weird browser-based interface. But the machine does weigh only 3.3 lbs and the battery supposedly lasts more than eight hours. “With your order from Gilt, you’ll also receive a limited edition, custom-fit Chrome sleeve designed by Rickshaw.” It comes in “arctic white.” The model includes up to 100MB per month of Verizon 3G service for 2 years. The early sale ends at 9 a.m. on June 3.