Just set Mobile Defense up on my EVO and had major issues. The UI wouldn't load after about 5 restarts and whenit finally did load it was so slow it would take 15-20 secs to perform any action. I uninstalled it and all is well. Theres a post on the Mobile Defense forums stating users are havin issues with the Evo and Mobile Defense so if you use MD you may want to hold of until this is worked out.
Keith
Keith