I think the rounded spouts tend to spill more. I've actually found that the easiest pitchers to pour from are the old-fashioned plastic pitchers with a fairly squared-off spout design. Something about it seems to make pouring and stopping easier, because of course, it's not the pouring that usually results in a spill, it's the dribbling when you raise the pitcher once you've finished! :)

Agreed , it would be great to have a variety of colors offered for your on the go bottle. Maybe that clip on the side could double up as a clip for the connection to the Brita Filter at home and a clip to a strap to be able to carry the bottle away?