SharePoint 2013 Public Beta - First Impressions

So, today I spent about an hour with the public beta of SharePoint 2013. My first impressions:

1) Blue top bar, having the Static word "SharePoint" (IMHO, it is just taking up valuable space!), followed by (on the right side) Newsfeed, SkyDrive, and Sites.
2) The long-running operations now have the "Sorry to keep you waiting." How cute.
3) However, too many errors result in the "Something went wrong" error messages - I wish they were more specific.
4) Borrowed a lot of ideas from NewsGator, such as Community Portal, Community Site, "following" sites, etc. I created a new Community Portal as well as another site collection (with "Team" being the top-level site and a "Community Site" being the only subsite.)
5) Navigation is not as easy as in SP 2010, the UI is a bit hard to follow, no breadcrumb navigation.
6) Icons where there used to be words. Sometimes it is helpful, but in many cases it is rather confusing.
7) Content is not just list, libraries, and sites, it now also has "apps" (a new buzzword from SharePoint 2013 lingo.) Oh, and lists and libraries are "apps," too.
8) Central Administration has not changed that much. Same UI as it was in SharePoint 2010. But when you create a new site, it has a little "Experience" dropdown box where you can choose whether you want the 2013 experience or the 2010 experience.
9) There are three or so more service applications (Machine Translation, Security Token, and App Management.)
10) Visual Studio 2012 now allows Visual WebParts in Sandbox solutions and provides designers for lists and content types, the Microsoft Fakes framework for testing SharePoint code (always a good idea), profiling tools for SharePoint projects, Intellisense for JavaScript, and a new item template for Project Item.