Map View w/ collapsible filter widget

In-Progress map view for our Deals app. Still lots of work to do, but I thought I'd share some bits.

Tapping the filter button (wrench, yeah it's placeholder) pops up the filtering widget that allows you to filter results by toggling categories, or by "deal awesomeness" via the slider (ie: only show deals in these categories that offer at least X% off) Tap the filter button to retract it behind the main tab-bar.