RSS feed viewing is indeed another fine example of where these features woudl be well used.
The blog module has the ability to define sitewide RSS feeds of interest.
A page editor can add any number of rss feed blocks in any order on each page.
The capability which is included with the blog module is requested here:
http://moodle.org/mod/forum/discuss.php?d=10245&parent=55202
Some work (which looks good and could be leveraged/merged with what I have now) was already done here:
http://moodle.org/mod/forum/discuss.php?d=10245
General developer forum
Seeking changes to blocks for blog support
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