It's interesting how Android/iOS has created these new habits in us (I remember recently trying to pinch to zoom text on my iPad as it was connected to a VNC display and just ended up highlighting a lot of text on screen).  That is actually a very trivial task (then again I'm not the one doing the work in this case but it is still a good suggestion ) as seen by the example code here.  It could also work to switch from raffle details back to complete listings.  Heh it's actually a technique originally called "pogo-ing", now they are all fancy and refer to it as "lateral movement".