Skyhook announced two partnerships recently, with both FoursquareX for Mac and Flixster for Android.

FoursquareX is one of the first apps to utilize Skyhook’s Core Location services on the Snow Leopard version of Mac OS X. This finally eliminates the app’s sole availability on mobile phones. Skyhook’s Core Location allows FoursquareX to automatically detect venues surrounding a user, and sends notification when friends check in nearby. You can then see you and your friends’ check-ins on a built-in map.

Now that Skyhook is powering location on devices outside of mobile handsets, FoursquareX demonstrates the cool possibilities developers have for apps on desktops. This broader availibility will allow our favorite apps, like Foursquare, and newer location-based apps to expand to desktops, netbooks and other nontraditional use cases.

FoursquareX is a free download for Mac OS X v10.6 Snow Leopard users.

Skyhook also announced a partnership with Flixster this month, and is now providing the location services on the “Movies” app for Android. With Skyhook, the app can now provide more accurate showtimes and theater information to moviegoers. Flixster is a hugely popular app on iPhone, and now will have more accurate location on their Android version as well. Flixster’s apps are available today in the iTunes App Store, BlackBerry App World, Android Market and the Palm Pre Applications website.