There is a lot of it about, a lot of find out about. short term I don’t think this will have any effect on Glow Blogs, long term who know. Here are some things I’ve been reading.

• Welcome to the New WordPress.com and WordPress.com App for Mac — WordPress.com News
  

  What if WordPress.com helped you…

  … update your pages and respond to comments from a desktop app?
  …manage all your WordPress blogs and sites in one spot, on any device?
  … spend less time on administration and uploading and more time creating?

• Dance to Calypso | Matt Mullenweg
  

  With core WordPress on the server and Calypso as a client I think we have a good chance to bring another 25% of the web onto open source, making the web a more open place, and people’s lives more free.

• The Story Behind the New WordPress.com | Developer Resources
  

  You could for example write a Calypso-like front end for your website (Calypso is an admin interface) and that’d mean that a user visiting your website would never see a PHP-powered page. WordPress would just be silently chugging along in the background handling the REST API requests and storing all of your data.

  from a comment by Alex Mills

• Why WordPress’s new Calypso interface is genius
  

  But this is also a rebuttal to anyone who thinks that everything should sit on your own server. With this change, WordPress is now, at least in part, a centralized service – albeit one where you get to choose where your data is stored.

• Why WordPress’s new Calypso interface is genius ~ Stephen Downes
  

  It’s the opposite of the classical content management service model, where the data is managed by a central server, and the interfaces sit wherever you want. It takes a bit to wrap your mind around.