I do not necessarily agree. There are a _lot_ of good _businesses_, which basically _fill the gap_ in other product.

xMarks is not like an cut-n-paste iPhone app (http://www.joelonsoftware.com/items/2009/06/10c.html), which becomes _useless_ after the vendor decides to implement the feature, rather a decent service (Chrome/Mozilla sync does not solve the syncing problem across browsers/iPhone/iPads etc.) which could not its business model.