Here's a folder management UI I put together last weekend.
Sometimes I work with data loaded systems and those require pretty flexible filtering approach, especially when we're talking about mobile UI.
I thought this layout might be worth of your attention. Within it, we can have as many tabs (each stands for a column or a data unit) as we need and when internal filtering adjustments don't fit the section vertically, we can always scroll that down.
Hit "L" on your keyboard if you like it :)