The @anywhere feature, announced at the South by Southwest Interactive conference, is a bit miasmic at the moment. Twitter's blog suggests it will permit sites to use a couple of lines of Java script to layer Twitter on top of their site --- thus, you could follow a reporter at a news site by running the mouse over her byline.
"With @anywhere, web site owners and operators will be able to offer visitors more value with less heavy lifting," Twitter co-founder Ev Williams blogs.
It isn't exactly Twitter's entry into the business sweepstakes. That road lies ahead. But, despite the vague information, it seems a good little path.