What you're looking at is the Dell Latitude 10, which is sold with the tagline "built for business". While we're not entirely fans of every aspect of Windows 8 tablets, this $899 model one does have one potentially very handy feature - you can pop out the battery and pop in another one (except for the Latitude 10 essentials model, which doesn't let you swap the battery). That's not something you can't do with several big name tablets, including the iPad and Microsoft's Surface Pro. Click the next photo to see how it works...