5.0 is minor point release with a small grub boot menu correction (hard drive installer option shouldn't be displayed when it's not available!) and an updated xulrunner.
Once Firefox in Debian 3.5 hits unstable, there should be some backports and a much more exciting release will be made. The Webconverger kiosk addon for Firefox is being overhauled for 3.5, which should address some problems on the todo list.
I'll be in Debconf9 next week in Spain and I hope to at least get the Debian installer working again for us.
The images are available on the European download mirror first. Enjoy.