Most of the internet banking apps I've ever used, have a feature whereby if the app is backgrounded for a certain period of time (say 2 or 3 minutes), then when the app is brought to the foreground, it requires the PIN to be re-entered. This enables you to still switch back and forth between apps for the purposes of checking/copying payment info (accounts and amounts etc) while you are actively using the app... but if it sits idle for an extended period it relocks itself.
Mycelium never does this, unless the app is totally removed from memory by the Android app management and/or you use the back button to back all the way out of the app everytime.
Also, that thread focusses more on desktop/web wallets and doesn't specifically cover Android... hence why I was going to ask. Anyway, this is starting to get off "Electrum" so I'll ask my query in the top level Alternative clients board.
I had read such good things about Electrum, as it seems a lot of people really like the desktop client. I'm fairly "mobile" so would prefer a mobile wallet for my Android device, so I thought I'd jump into Electrum using the Android app... that was a fairly bad idea. The app takes forever to do anything when you open it for the first time. There are graphical glitches when you start scrolling some of the menus. The onscreen keyboard for doing the seed and pin stuff is just terrible. Despite PIN being on, it never seems to ask for one unless I want to change the PIN. I can close the app, remove it from memory etc but when I open it again, I get the Electrum splash screen and then straight into my wallet... no PIN required!!?! 