My wife's '08 has had several wind noise issues with hers.
-wind noise - above 55mph - outside rubber trim was very hard/stiff - lifted away from roof line, dealer replaced with a more pliable rubber gasket/trim piece - holds roof line much better - noise reduced.
-inside headliner peeled away from front bow - was attached with an adhesive that when under the hot sun went soft and peeled away - repaired under warranty - good now.
-wind noise back- adjusted and lubricated some cables, performed TSB repair - wind noise went away - except into a headwind above 55mph.
-wind noise - back above 45-50mph - back into dealer - front bow 'bent' - did someone try and close the sky slider when travelling above 45mph? they asked. Replaced bow, and flashed software to '09/'10 program that will not let you close the roof if travelling above a set speed. - apparently if it's open at hwy speed that's ok, but closing at that speed farks with the frame due to wind.
-the wind leak noise is gone - although it's only been 2 weeks. I'm sure the program change will help future damage, and the only noise I hear is 'thru' the material and minor, not an annoying wind leak.
I have not had a great experience with the slider, but then again the first model year of any vehicle has it's issues. The feedback that I read from '09 Liberty's leads me to think they have this retractable roof 'covered' now. My local dealership has backed the product without pushing back, so that keeps my blood pressure in check. I wish they would detail the headliner now, because after all this frigging around, there are multiple smudges on the light gray fabric.
The suspension is improved vs. the '08 now too - less bouncy, rolly polly.