its the end of the world as we know it

Here are some apocalyptic scenarios related to VoIP and SIP:

• SIP's Insecurity Blanket
• Report Finds VOIP Services Susceptible to Major Attacks Through SIP
• VoIP security industry -- guilty as charged

Not exactly positive reports on VoIP - what they're effectively saying is that VoIP's increase in the phone market is a ticking bomb that will have great repercussions from a security point of view.

But IMHO, one thing's for sure - with big vendors like Microsoft, entering the market .. VoIP is here to stay.