You may have noticed that we recently released a new version of Particle Whois, the main focus of which was a vastly improved admin interface. Well, it was the interface actually developed for Particle Blogger. As the scripts use such a similar backend though it easy for us to port it across as we wanted to update both of the scripts and just keep them fairly fresh.
The reason for the delay on the new version of Particle Blogger is that we are still tackling the new and upgraded WYSIWYG editor for writing and editing posts. Once that is done we will be ready to release the new version complete with all it's other new features too.
That said, there are many other ideas we are toying with too. Ideas like categories, pingbacks, a new look, even friendlier URLs (we have static URLs at the moment but you can always make something better) and probably a load of other ideas we will come up with as we are developing it too so don't hold your breath for an immediate release as we may put some more development time into it.