It seems that LindowsOS 4.0 has arrived. While the official product launch won't happen until Tuesday, the Lindows.com web site has come back to life, ready to sell us their latest and greatest. The information on the product page and also in a recent edition of Michael's Minutes will take some serious research before we can present it in a clear and concise way, but basically, the cheapest available product is LindowsOS 4.0 for US$49.95 for digital delivery.