Not sure if this will bump the thread, or be buried, but....
It would be nice if the cache count at the bottom of the page updated, but it doesn't seem to. For example, my Colorado map shows 257 caches. I click the smiley and a bunch of icons (the ones I've found) disappear, but the "257" doesn't update.
I thought that clicking the "Create Map" button again would do the update, but it resets everything (including bringing back all toggled-off caches like my smileys).