In the Winter we ride Snooter Shoes. Our Sponsor have the idear to made ski under our freeride bikes, so you can drive your own bike and because of the crank you have the normal Downhill feeling.
http://www.schnee-hirsch.de/
www.rock-riders.de
www.bike-stuff.net
we often ride in ski areas with t bar lifts. So it is very easy to handle the bike during lifting. In my foto album you can see some pictures about lifting.
But with a chairlift you have to hang it up on the side of the chair and additonal you can grap it with your hand. The other possibillity is you can take it on the seat if no other persons want to lift up.
that would be cool if there was a paddle tire barely appearing through the rear ski. That way you could pedal on flat ground. Idk how well it would work, but it may be quite helpful.
there are some pages were you can see videos or fotos of riding sessions. A Father from my frind have developed this snooter shoes.
www.snooter-shoes.com
www.bike-stuff.net
www.rock-riders.de