I've received negative response to my request to anywherize usernames with no @-prefixe from the maintainer of Anywhereize module for Drupal here: http://drupal.org/node/822308 and hope that this issue can be addressed here.
I've got it working on my site for all the words prefixed with @-sign. However, it would be very nice if all the usernames on my Drupal site (which are exact Twitter usernames! I allow only Twitter users to register) (without @-sign) and their profile pictures could have @Anywhere features. How can this be achieved? Thanks!