internet - Has the Skype protocol been cracked?

And what does it mean? Several stories, like this one in the CIO-site, suggest that a small Chinese company has cracked the proprietary Skype code by reversed engineering. That would be an interesting development and might be scary for those companies who do use proprietary programming for their business model.
The next question is, when it is true, what is going to happen with that knowledge. It might force Skype to open up to third party developers. Another possibility, suggested in the articles, is that it could help the Chinese government to actually block Skype more easy. The last suggestion would not really be that realistic: if it gets blocked, we could simply shift to another system. All that blocking is already possible and has not seriously been pursued as far as I have noticed.