WordPress 2.6 was announced and below is a brief video tour of it.
One of the more exciting features is how WordPress now works with Google Gears. I then followed these instructions to enable WordPress to use Google Gears after installing Google Gears. Finally there is a further explanation of WordPress and Gears.
So far my experience has been that things are a bit faster, enough to dampen my urge to find a desktop client for writing my blog articles.