I plan to write a blog post on how the name helped us. It may sound unsexy or cheap to the startup/programmer community here on HN but for the internet marketers (who are my target customers), having the "Website Optimizer" pits the product exactly opposite to Google's tool (which was well known at the time VWO launched). It helped us position the tool, other wise we would have to educate what Wingify does.

Microsoft's first product was simply called MS-DOS and I don't think having a "OS" word in it caused them any disadvantage (in fact it helped them). But then in days of MS-DOS there were no tech blogs :)