Competition is good for consumers

I have been bombarded with e-mails from Skype today where they have annouced their newest promotion:

Starting from today it doesn't matter if it's a Skype-to-Skype call or a call to landline or mobile phone - it's free as long as you're calling from within the US or Canada to US or Canadian phone number.

All of the new competition within VOIP is great for consumers! My gut says that this is not sustainable and a throwback to the thinking of the first bubble, however, I'll take it!