As far as I know, there is no comparison between those two. I like the Mini too (and I even don't have a problem with the color) but I agree with you, the design is not as stylish and the folding mechanism is not as "cool" (even though it is an efficient mechanism).

If I were you I woudn't wait for the SL. Dahon is well known for release delays and unless you have 3% body fat, anything less than 3 pounds can be achieved by a smaller breakfast in less than 2 weeks.