ANONYMOUS Nice start! The live preview is a wonderful feature I've been waiting years for... there are only two things that really need work, in my mind. The first is the ability to see updates to external CSS stylesheets in real time as well, so we don't have to manually include them in the file. The second is better syntax highlighting that isolates HTML attributes, tags, internal strings, JavaScript, etc. Some might say the editor needs more markup features as well, and I suppose I can see why, but I don't see that as a priority. The ability to dynamically generate the code for some random bits and bobs of HTML is nice, but it's not necessary for writing good HTML.
(Version 1.0b1)