Homework for Radio vs. Blogger Matchup

AppSwitching Diary at LooselyCoupled.com discusses the decision one publisher made between Radio and Blogger for his site. The writer, Phil Wainewright, opted for Blogger but doesn’t make a very strong argument for it, discussing customizable templates, something both services feature. He does cite this difference:

Radio requires installation on my local PC, whereas Blogger functions entirely in the browser.

I have to admit that being able to post to my Blogger sites from any computer running any browser anywhere in the world is an advantage. Does Radio even have a “Post to blog” widget for one’s personal-link toolbar in IE or other browsers?
Still gathering info for today’s comparison.