Just wondering:
I read the first article which said Skype doesn't integrate with Microsoft Office. True you do need to install an add-on, but Outlook really comes alive with Skype, maybe you should do a little more research. The other thing I haven't heard anyone mention is Skype's lack of Fax support. This is a major issue which Microsoft is likely to address. For Outlook users it really is a big deal, because most Office users have high speed Internet but not a working Fax modem connected to a telephone line. For a lot of small business owners an inexpensive Fax solution is absolutely huge as are the time savings.
Lastly, there are plenty of uninformed people that might not download, install, and configure Skype, but they will use it as a feature on a new television, game console, or Blu-ray player.
All-in-all, the potential is so huge as to upset the status quo, no doubt the ensuing battles will make for interesting reading.