One of my biggest gripes about the app is the fact that I need to load the front page onto my phone when I open the app up. In my scenario, I will usually pull up the Wikipedia app to look up some facts to settle a friendly discussion; all of my friends who use the app use it similarly.
Since I never use the app to browse Wikipedia like I do when I'm at home at my desktop computer, there's no use in loading the front page. In fact, it's pretty frustrating when the text I'm typing in the search bar lags, or gets reset as I'm typing my entry, and I'm forced to wait for the front page to load first. It sort of defeats the purpose of having quick access to Wikipedia, since the alternative would be to open up a browser and go to wikipedia.org or flip through Google search entries.
Basically, it would be awesome if users could choose to have their default page be just the search bar, or something similar that would load very quickly.