It would be really nice if someone could answer this.
I've been doing development using php5 and phplib. Most without compatibility mode on.
Nothing in production yet though.
I'm using the template, session and database classes in my sites. And if the webhotels start upgrading to PHP5 and the PHPLIB isn't compatible wiht PHP5, then I'm in big trouble. So it would be nice to know if everything will continue to work nicly, or if I should start thinking about moving to another country.