I find the endless pagination thing obnoxious on mobile devices. First of all it taxes the browser after several pages, and if you switch applications long enough for the browser to think it needs to reload, you're stuck with the first collection and have to scroll a ton to get back to where you were. I also have a problem with the way some endless pagination techniques work on the desktop as well; Facebook's new way of doing lists is damn near impossible to scroll by grabbing the scroll bar and dragging. I would like to see a smarter endless pagination where it's not just added to the bottom in an ever-growing page, maybe instead it also pops the last one/set off the top, so you've always got a set number of results visible and you can "scroll" through that, or something similar. Seems like that would make the next/previous sets easily cache-friendly for speed and should still be state-friendly.