Read this article - I Googled for 'Skype Spyware' :
http://66.102.11.104/search?q=cache:...hl=en&ie=UTF-8
Pay particular heed to this proviso in their EULA :
(c) THE SKYPE SOFTWARE IS UTILIZED AND DISTRIBUTED BY THIRD PARTIES WHICH ARE UNRELATED TO SKYPER. YOU ACKNOWLEDGE THAT INSTALLATION OF THE SKYPE SOFTWARE WILL ALLOW THIRD PARTIES WHO ARE NOT AFFILIATED WITH SKYPER THE ABILITY TO COMMUNICATE WITH YOUR COMPUTER ("OUTSIDE PARTIES"). YOU AGREE THAT SKYPER WILL NOT BE LIABLE FOR ANY DAMAGE, CLAIM OR LOSS OF ANY KIND WHATSOEVER, INCLUDING BUT NOT LIMITED TO INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES AS STATED IN PARAGRAPH 9(a) ABOVE, RESULTING FROM ANY ACTIONS OR OMISSIONS OF THE OUTSIDE PARTIES.
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According to what I read the Beta does not contain Spyware - but the Final Product may well do.