We’ve added new resources to the App Store Resource Center that make it even easier to promote your apps worldwide. The updated App Store Marketing and Advertising Guidelines for Developers provides helpful information on using the App Store badge—including new localized versions in Simplified and Traditional Chinese, Japanese, and Portuguese—as well as featuring Apple products in marketing materials, creating custom photography and video, promoting apps with accessories, and more. Visit the App Store Resource Center.

The Apple Push Notification Service provides a high-speed, high-capacity interface, so you should establish and maintain an open connection to handle all your notifications. Connections that are repeatedly opened and closed will affect the performance and stability of your connection to the Apple Push Notification Service and may be considered denial-of-service attacks. You should also connect regularly to the feedback service so you don’t send notifications to devices that no longer have your app installed. Learn more about connecting to the Apple Push Notification Service.

Great apps come in all sizes. If you happen to offer a larger app, we’ve made it even easier for App Store customers to get your app wherever they are. We’ve raised the Wi-Fi download requirement from 20 MB to 50 MB so customers can download apps up to 50 MB in size over their cellular data network.

The Mac App Store is the safest place for users to get software for their Mac, but we also want to protect users when they download applications from other places. Developer ID is a new way to help prevent users from installing malware on their Mac. Along with Gatekeeper, a new feature in OS X Mountain Lion, signing applications with your Developer ID certificate provides users with the confidence that your application is not known malware and has not been tampered with. Get started with Developer ID today and prepare your applications for Gatekeeper. Learn more.