Not Yet.
Skype has filed for an initial public offering as of August 2010, and will soon be trading on Nasdaq.
You can Skype on the downloaded program of Skype
You do not need your Skype number to make Skype to Skype calls. You can log into your Skype account with your recently made ID and password.
If you have created your Skype ID recently, then you will not your number to make Skype to Skype calls. You can log in with your Skype ID and password to make calls.
Yes, you can make Skype to Skype calls with just your ID and password, you don't need your Skype number.
You can download Skype from Skype's Website!
For some Features of Skype you need Skype Credit!
All Skype to Skype calls are free, regardless of location.
The symbol for PowerShares NASDAQ Internet Portfolio in NASDAQ is: PNQI.
The symbol for ProShares Ultra Nasdaq Biotechnology in NASDAQ is: BIB.
The symbol for ProShares UltraShort Nasdaq Biotechnology in NASDAQ is: BIS.
I believe it's like mobile credit, with Skype, you can call people on Skype for free, but calling mobiles via Skype costs Skype credits.
Skype on a computer to Skype on another computer is 100% free, regardless of locations.