Dat ball and dem cones..
The new upright looks really interesting! The most exciting thing to me is the brushbar that looks superior to both the DC41 and DC65 (it looks like the UK's DC41 MKII's gap-free brushbar), so I can't wait to see how it cleans. The Cinetic Science is intriguing, but their cyclone packs on their current models are already so efficient, I'm more excited about the likely improvement in carpet-cleaning performance.
I wonder why the US models don't get the 'Max' slider that's on the UK models (does Dyson think Americans are so lazy we won't bend down to flip a switch?).. Just like theirs, the new TOL ball uprights love to glue themselves to hard flooring.
I recently acquired an inexpensive, but very broken-in DC41, and using it has revealed some design flaws that could be an issue across the entire ball upright range. The 'ball halves' have a bearing in their center, but also ride on very small wheels under the vacuum, and on both sides the wheels had completely seized up (I think moisture got into the ball itself). As a result, the vacuum rolls very rough when not in use. Only one half of the ball is easily removable to lubricate the wheel, and without special tools the other tiny wheel is hard to access. Dyson occasionally quietly addresses design flaws, so maybe this flaw was addressed in development in the Big Ball model.
Can't wait to try it! I hope it's a home run, like the DC59.