No Atom support for Drupal Aggregator

There are at least 4 feeds I'd like to be importing into this site but cannot because they are Atom feeds which the Drupal Aggregator module does not support. So it looks like if I want to have that functionality I'll have to switch to another module.

Some posts complaining about this problem:

* http://drupal.org/node/17125
* http://drupal.org/node/98398
* http://drupal.org/node/12485
* http://drupal.org/node/13941
* http://drupal.org/node/124895

Some alternative modules:

* http://drupal.org/project/aggregation
* http://drupal.org/project/fooaggregator
* http://drupal.org/project/feedparser
* http://drupal.org/project/simplefeed
* http://drupal.org/project/leech
* http://drupal.org/project/planet