Guys, I have a great idea - ask Microsoft to include SharePoint Foundation 2010 into Web Platform Installer. It'll be very usefull for all community. I do it by twitter: http://twitter.com/butaji/status/19322524336. What are you think about this petition?
Agree with Mike, having SharePoint in the Web Platform Installer will certainly make even more bad installations of SharePoint (which of course make consultants busy :-), aka Standalone installations.
The standalone option is there for one single purpose - and that is trial and demo (and AFAIK MS added that feature to satisfy some research companies when they said SP was to cumbersome to install). If SP was added to WPI it would certainly make companies beleive that the installation is production ready - which it is not when installed in Standalone mode.