The technology behind cleaning clothes has spun through more than a few cycles over the last century. Soon, those who delight in living the clean life could be awash in an even newer twist. Washers and dryers that link wirelessly to Internet-connected home networks are being tested by consumers who are receiving updates on their dirty laundry via cell phones, computers and TV sets. Messages not only indicate when a wash is complete but also can warn that a lint filter is clogged or a load is too large.