Well my Snow Leopard disk came through yesterday and I upgraded the same night. I’m running it on a Black MacBook 4.1 which does not support the 64bit kernel.

The only problem I have had is the upgrade changed my httpd.conf and commented out the line LoadModule php5_module libexec/apache2/libphp5.s. This stopped PHP from being loaded.

Other from that im impressed with the install and my development environment is working just as before. Impressive Mr Jobs.