This post is long overdue since Plone 5 alpha 2 was released on 2014-04-20! It is also too short. I may do a followup blog entry to review more features, depending on how well this one is received. I also want to talk more about Plock.
When Plone 4 alpha 1 was released, I was so excited I immediately ran it in production. Now-a-days I use Pyramid for aclark.net but I still get excited about new Plone releases.
As such, I finally got around to testing the latest Plone 5 alpha with my deployment stack and the results were very impressive, so I thought I'd share.
Hosted configuration
Because of the "muscle memory" I've built up over the years doing this, I always install Plone in development and production via my hosted configuration files. If you are not a developer you may instead prefer the Unified Installer, VirtualBox/Vagrant installer or OS X Lion/Mountain Lion/Mavericks Binary Installer otherwise follow along [1]:
$ pip install tmp virtualenv $ cd `tmp` $ virtualenv . $ bin/pip install zc.buildout $ bin/buildout init
Edit buildout.cfg to contain:
[buildout] extends = https://raw.github.com/plock/pins/master/plone-5-0
Run Buildout and start Plone:
$ bin/buildout $ bin/plone fg
Create Plone Site
The first thing you will notice is the improved "Create a Plone Site" page which now includes a timezone configuration option:

Barceloneta Theme
I selected the US/Eastern timezone and clicked Create Plone Site, shortly after which I was greeted with a beautiful new Plone 5 site in all its open source glory. Immediately you will notice a new theme and toolbar:

Plone Toolbar
Here is a quick tour of the new toolbar.

Folder contents

Edit button

Sharing settings

Workflow settings

Add content

Layout settings

Thanks
Many thanks to everyone who has worked hard to make Plone 5 a reality.
You should probablyhire meorfollow me on Twitteror both.
[1] | And please try Plock which automates all of these steps e.g. pip install plock; plock .;bin/plone fg Once Plone (4) is installed, update the extends parameter in buildout.cfg to https://raw.github.com/plock/pins/master/plone-5-0 and rerun Buildout. |