First things first: Log into Gmail in your web browser, choose "Settings" from the "gear" dropdown, hit the "Forwarding and POP/IMAP" link near the top of the page, and make sure POP is enabled. You can enable POP in the second group of settings on the page. I don't have an Android device, but it appears that you know where to find the option to keep mail on the server. If POP is properly set up, I would think that within your phone's Gmail account settings, you'd find it in the same place that you're finding it for Hotmail. If things aren't working at this point, rather than attempting to change your current IMAP account to POP, you might have better luck setting up a POP account from scratch, then deleting the IMAP account from your phone once all is said and done. As an aside on this, I use Gmail IMAP on both my Mac and iPad, but I reserve labels for archiving by excluding them from IMAP. That keeps my iPad relatively clean. Archiving is a bit more work, though. For mails I want to keep, I make sure that they're assigned a label that's excluded from IMAP while also copying them to a local folder in OS X Mail on my Mac.