My WordPress - A Private In-Browser WordPress Install
I saw this while perusing my RSS feeds last night, and thought it was interesting. In all honesty, I've completely moved away from WordPress since all the drama a while ago.
But this is quite cool - My WordPress is basically a version of WordPress that runs entirely in your browser. You visit my.wordpress.net it downloads some files to your machine, and you have WordPress - no install, no sign up. Just a private WordPress instance in your browser that only you can visit.
Obviously if you reset your browser, or switch to another browser, you will lose your instance, but there are backup/restore options available.
I think it might be good as a private journal or something, but I'm sure other people will find some interesting use cases for it. Either way, pretty cool.