How do I get play store to stop asking me to auto-update on wifi?
I have since been updated to 4.0.27 and although I got prompted after my first app update as to whether I want to auto-update next time (no mention of Wi-Fi though, although I suspect this is dependent on your settings) to which I responded "Not Now", I have not been prompted since in subsequent updates for other apps.


  In Play Store->settings->auto update, automatic update is turned off, and has no setting for 'wi-fi only'.


In version 4.0.27 there should still be a 'Wi-Fi only' setting, although it is now (hidden) under the "Auto-update apps" sub menu. In Settings, tap the "Auto-update apps" option:





Update 2013-05-11: I've had quite a few updates for various apps over the past week and not been re-prompted to auto-update next time - that is, until today. Today I got prompted, to which I tapped "Not Now" again. I have not been re-prompted since. Perhaps it prompts once a week or every so many updates?