Because it's "just fun", Skype has breathlessly announced its software has been downloaded more than 150 million times while there are more than 50 million registered Skype names. As Om Malik succinctly notes, the updated numbers don't provide any value-added information. It's interesting that everyone knows Skype has hired an investment firm - Morgan Stanley - to explore the company's options (acquisition, IPO) and that talks with Rupert Murdoch's News Corp. happened yet Skype is unwilling to disclose any new financial or user metrics. Like Vonage, there is sexiness and mystique in being a privately-owned company. Without having to file quarterly results, you get to keep everyone guessing about how you're doing. Speculation = Interest...Interest = media coverage and, hopefully, more users.