I need to rant about this so 
  please be aware that this is my own view and not my employer's (i.e. 
  Microsoft). 
Two weeks ago I 
  signed up to attend a 
               Sonic Software Architect's Forum
         in 
  London. I often attend public events put on by competitors just as they attend 
  events put on by Microsoft and my team. This is common practice in the 
  industry. In fact we've even had folks from Oracle present at Microsoft 
  events, e.g. TechEd Europe! And at the recent PDC we had Google participate in 
  one of our architecture panel sessions. In public we foster open and honest 
  communication and show respect for our competitors. In private, it's no 
  secret, we're a tough competitor. Fair's fair.            
                     
                    
                     
                 
                   
       
   
 
      
   
However, last 
  week I was 'phoned up by a Sonic Software representative and told I was not 
  welcome at their public event? I was being de-registered immediately. What a 
  shock; it was the first time this has happened to me and it got me thinking 
  about why Sonic was doing this. 
                    
                  
                       
          
   
 
      
   
It's not as if I 
  can’t find out about their ESB/SOA vision and technology from other sources, 
  including their own customers. It's not as if Sonic Software (particularly 
  Dave Chappell, their CTO and main speaker) is going to say anything 
  earth-shattering about ESB/SOA in a public forum. 
                    
                  
                  
           
   
 
      
   
Is it that Sonic 
  Software (and perhaps Dave Chappell himself) is going to say something about 
  Microsoft and our strategy that they don’t want me to hear? Are they 
  embarrassed I might challenge them or kick up a stink? Not likely in a public 
  forum! 
                    
                  
                     
   
 
      
   
In the spirit of 
  open and honest communication, if Sonic is positively discriminating against 
  Microsoft (and possibly other companies too) in their public events, then they 
  should say so at the time of registration instead of wasting our time and 
  energy planning to attend their events. 
                  
                 
                     
          
   
 
      
   
And finally, 
  Sonic employee, next time you attend one of Microsoft's public events - and 
  you're very welcome to do so - please stop to think how you've been treating 
  us, and me specifically, with blatant discrimination. 
                  
                      
            
   
Per 
evitare confusioni, il David Chappel che vedete citato non è lo stesso che fa lo 
speaker al TechEd e ad altri eventi (Microsoft e di altri). Sono omonimi...