Yes, actually Microsoft is converting everything to cloud apps, no? Even for enterprise (office365) but also if you have hotmail / outlook.com account, you can create and edit office documents using a web browser, even with a chromebook. So everything is moving to the cloud, and I would guess Skype (now a Microsoft product) would be too, especially if it replaces Messenger which had a web-app version. Look at it another way, all IM / video chat apps (yahoo, google talk, microsoft messenger) were web based, and now Microsoft will be the only one that will not have a web-based option? No, Skype is bound to have a web-app version, so you can use it on thin clients, chromebooks, and the like, my question is not "if" but "when" ? :-)