Can't We All Just Get Along? Depends on Who This "We" Is.
This is the usual UserLand put-down and disrespect masquerading as appeals to playing nice. I'll start believing this sort of thing when I see someone at UserLand using a non-UserLand product to do a weblog. The only thing UserLand ever means by cooperation is basically "what mine is mine and what's yours is mine." Even the Blogger API, which may have been the one time I ever saw them make an exception to this rule, is about to be supplanted by this SuperMetaUberWeblog API, and you can bet your boots that if this thing gets implemented in the usual slaphappy way, DW will start pushing it as the "standard", and will fragment that community in precisely the same Microsoftian "embrace and extend" way he did with RSS. If I were Evan Williams, I would be very very careful here, put the additions to the Blogger API on high priority, and be on the lookout for another hissy-fit landgrab.