If you want to receive your Gmail emails, synchronize and backup your contacts, calendars, media or to simply download an app from the Play Store, you need to add your Gmail account on the LG G2.
The new Nokia Here Maps have an option that enables you to download maps to your iPhone or iPad via Wi-Fi, so there won't be any data connection needed the next time you will be using the app.
Neat little trick to force the preview images of running programs in Windows 7 taskbar or a so called Aero Peek, to show instantly with no delay at all.