Menu bullets showing in top menu.

Right, I will take a look, cheers.

I've noticed this too. I added this to my custom styles:

.region-top-menu ul.menu li.leaf {
  list-style-image: none;
}

It is this code in sky.settings.style.css (this is for arrow head menu bullet style):

.mb-ah ul li.leaf,   
.mb-ah ul li.collapsed,
.mb-ah ul li.expanded {
  list-style-image: url(images/ts/arrow-head.png);
}

that takes takes precedence over this in navigation.css:

.region-top-menu ul.menu li {
  float: left;
  list-style: none;
  list-style-image: none;
  padding: 0;
  margin: 0;
}

Sorry, forgot about the other two states, make that:

.region-top-menu ul.menu li.leaf,
.region-top-menu ul.menu li.collapsed,
.region-top-menu ul.menu li.expanded {
  list-style-image: none;
}

I went ahead and made a patch out of AdrianB's solution:

Thanks webavant! You're a contributor!

Committed to 7.x-2.x-dev.