Ajax Desktops Won't Stop

eskobo is the most recent entrant into the crazy-crowded Ajax desktop space. Eskobo has (now) standard drag and drop modules. Everything is customizable except the adertising, which can be moved, but not removed, from the page.

Why do people continue to produce these? Google and Microsoft already have compelling products, and I question whether there is even a market for this anyway. Here’s my current list of known Ajax desktops:

Who am I missing?