FW: Your opinion on Skype

I've been reading several articles including the link to one below regarding 
Skype software.  We have several users in our HQ office as well as field 
offices who were recommended to use Skype to keep in communication.  Several of 
us in our IT department are very apprehensive about it for many reasons 
including the fact it's not been through a pilot phase.  Aside from the VoIP 
functionality, I do not understand why they need it, because we have an 
enterprise IM client available, which you can integrate several other IM 
clients with.  A VoIP solution is not far away from being deployed throughout 
organization as well.  

Skype's claim of being secure does little to ease my mind.  Skype is not on the 
list of our supported applications, and as a low on the totem pole I am within 
the organization; I would be remiss by not mentioning my apprehension to the 
end-user of it being on their computer.   I just wanted to get your thoughts on 
it.  I've installed Skype on my own computer and haven't seen any adverse 
effects, but I do not use it often due to lack of time.  Have any of you 
deployed it successfully within your network? What is your opinion on the 
application? 
  
http://networks.silicon.com/telecoms/0,39024659,39125816,00.htm


Thanks in advance,

Joe