"So, the 2.6 billion dollars eBay paid for it was
obviously not quite enough — Niklas Zennstrom and Janus Friis
have been getting “licensing” money for that code since
“selling” Skype to eBay.
"To me, it sounds more like a rental agreement more than a sale:
eBay paid 2.6 billion dollars for the right to rent Skype’s
core technology from Skype’s owners. Let’s call it a
“bond” — an expensive one. Especially when the
landlord decides to throw you out."