One word before: Don't trust the poll here- only the active members are voting here, and they are the small part of the WB community that are skilled in web developement. The very big part of the community (that aren't present in the forum) won't take part here.
Well, I don't like that idea at all. Many, many hosters only have php4.x (if they have), and WB is a CMS that should be only one thing: Easy.
When it is only supporting php5 it is not easy to use, because many not-so-friendly-with-technique users don't know that, and then that would be an own goal.
The security, the ability of the software has nothing or not very much to do with the php version that is used. Seeing the very unflexible structure at WB today, seeing that know security issues and bugs are fixed half an year or even longer after they are known- that should be imporved very quickly, not the php version. And one fix that was made was so hiden somewhere in the deeps of that forum, that very, very few people have seen it. There should be a news-ticker, -letter or something every websoftware has.
And the gophp5.org is supported by only two CMS: Drupal and Typo3. And both aren't at all the ones WB should ever be compared with. Drupal lacks extremely security, and both are made for programmers, not at all the target group WB has. So taking part at this gophp5.org supported by some geeks- nothing WB should take part in.
Last of all: You and the WB developer group could do that- but then do it. Do it- we see it- we will believe it.
But don't ask whether, if or should and could the community would like that. You will only achieve one thing: To answer endless questions, and also the support team here. It would safe endless time for Matthias, Klaus and other very active and skilled supporters to stop that could-be-news in drips and drabs, then they would have more time to improve the "is" WB and not to anser something about the "will-be" WB.
And in the end you will be as clever as before because there are always two grupos- supporters of your ides and opponents.