The targeted launch for WP-Polls 2.1 and WP-PostRatings 1.02 is 1st June 2006, as you can see now both will feature the fade in and fade out effect and the loading icon.
WP-Polls 2.1 will also feature a new option where you can choose to log by cookie, ip, both or none at all. I have updated the poll to log by cookie and ip, so now you can only vote once.