I have used IDEs that show versioned code side-by-side and scrolls it in unison, even if there is a disparaging difference in added/deleted code between the two versions. See the "Diff" feature in Netbeans for an example. It is very well implemented.

By "when you first load the application" I meant whenever the app is launched where it was previously not running on the device (for instance, after rebooting/updating the device, or when relaunching the app after it has been quit, etc). Currently, the Feed page is shown and I must pull up the sidebar menu to navigate to an actual SE site. 95% of the time I read the Japanese Usage page-- as such, I would like an option to set this site as the app's home page, rather than the Feed page. I do read other SE sites (SO and UX at work), but I don't think I will ever access them via my phone.

That functionality is there. If I leave the app to look at something else, and return shortly thereafter, the page I was last on is still in view. I am talking about a default site to load on initial loading of the application. Currently, you are shown the "Feed" page when you first load the application. I don't find this page particularly useful and wouldn't mind skipping it entirely, though perhaps I am the minority, not the majority.