alt Hacker News"This APK cannot be scanned and its safety cannot be verified. Learn more/go back" and "learn more" has a link that looks like nothing but is actually a button to actually install the app.
I can think of some easier things, for example popping up a dialog, pressing "install" and having my all actually be installed after that.
You're saying it should look like those damned browser certificate failure sites, with option to open the damn site hidden under button that looks like an unassuming link?