Apache still ahead of Microsoft?

Almost exactly one year ago, development guru John Chamberlain posted an alysis of why Apache had consistently trounced Microsoft IIS during the previous year. He built on this observation by posting stats to this effect on Slashdot, and creating a comprehensive analysis of this phenomenon in which he attributed Apache's gains to:

• Apache becoming more accessible on Windows
  
• security concerns about IIS
  
• more widespread use of Java-based technology
  
  and he later added the following ideas too...
  
• global use of the Internet favors Apache
  
• open-source software is becoming acceptable to corporations, along with the accompanying open source government mandates
  
• the public is becoming more sophisticated
  
• the administrative burdens in Windows are becoming more onerous
  

So what do you think now? Are Chamberlain's reasons still valid? Is Apache still holding its own against the IIS onslaught? I can't see Microsoft conceding the field to some cancerous open source solution, but is Microsoft losing ground, or gaining?