Agreed! This one snippet from the fatfree docs dispelled a good bit of my lingering hesitance to revisit PHP after a good while away:

  F3::route('GET /about',
  	function() {
  		echo 'No subliminal messages here...';
  	}
  );

The problems is that many popular hosts have not deployed PHP 5.3 yet. So, if you're planning on using this framework, you need to make sure your host and anyone you distribute it to are using at least 5.3. This nullifies one of the common reasons for using PHP ("it's supported everywhere").

this is fast becoming a myth. a lot of hosting companies are moving up. godaddy already offers php 5.3 shared hosting.

That just means the situation changing as time goes on, not anything about a myth. Of course at some point everyone will be running >=5.3, but I still hear about PHP 4 after all...