I am using Skype quite frequently these days for talking with both my friends and my business partners. Now via Morten I just learnt that Skype closed a deal with Kazaa - apparently a good fit between the two companies offering complementing services via p2p. They could leverage a strong user base (Kazaa claims it has 300 mil. users and Skype has 30 mill. dowloads and growing) and besides Skype's CEO (Niklas Zennstrom) was one of the Kazaa's founders.

While I like Skype very much, I must say that this move raises a question mark upon the privacy and all the SPIT (spam over internet telephony) issues, especially since Kazaa is famous for the spyware and adware (including the lite version).

Anyways - for a story background read these two older posts about Skype's model and also read Rodrigo's thoughts and suggestions for improving the technology.