Ok, so far I've tried jhenifer's rss category feed idea.
Doesn't work yet. http://cyclewriteblog.wordpress.com (see lst widget)
My question is that:
Can I only pull in posts from the home blog or from other blogs where I'm logged in as the editor or administrator? (So far, it seems like only home blog, cyclewrite.)
Would "bike art" in category command feed, be:
bike art
bikeart
bike-art (for a link to list of archived posts in another blog that I'm administrator this is what it does when I create a TEXT widget for clickable URL.)
bike_art
http://yourusername.wordpress.com/category/bike art/feed/ As an example that didn't work for me --yet. But I tried all phrase variations.
Sounds picky, but will be useful for several blogs if I get this right.