Changelog:

• Implemented initial offline support: your unread counts, subscriptions, folders and tags, and contents of feeds you’ve read are cached. If you are not online, these cached contents will be used and you can browse through your feeds and items. (Note: this is “read-only” at the moment, I’m working on a back-sync of offline changes to Google Reader)
• Twitter support (inital): tweet articles of your feeds (short URLs are supported)
• Changed some keyboard shortcuts:
  • Press space bar to jump to the next unread article of a feed
  • Press return key to open an articles website
• Changed some icons of toolbar to be more precise
• Gruml app icon is not so massive an more
• further bug fixes