Today beta update v.0.4.6 build >= 201211020110:

• image loading settings (load all, or only cached graphics)
  useful if you are on roaming with your internet provider.
• progress bar added while loading full-sized photos.
• gps unlock timeout added (check settings page).
  gps will unlock after application goes background for the specified amount of time.
• feed autoupdate integrated.
  you will recieve all new friend checkins with that period of time.

On the one hand currently there is no control for feed length, so application (if you run it for whole day long) can become quite laggy, in that case just reload it.
On the other — now, if application runs at background, you get all checkins of your friends, so none of them are lost!
Feed update does work while app is at background.