At this point, Apple has not released the complete documentation for Notification Center, so Richardson doesn't know if it will include new features in addition to the new user interface. Airship's enterprise customers especially would like to see support for read receipts and guaranteed delivery, and an increase in the current notification payload size of 256 bytes, he says.
Notification Center behaves more like the notification system devices running Google or Palm's webOS (now acquired by HP), according to Hoffman.
Other iOS 5 changes highlighted by Apple in Monday's announcement:
• A new version of the Safari Web browser, with Safari Reader, which can bring a newspaper article onto a single page, and lets you email it, or bookmark and return to later on another iOS device or a Mac; and full tabbed browsing for the first time.
• iMessage: the iPhone messaging client will be available now on iPad and iPod touch, for sending text, photos, videos, contacts, and doing group messaging; the encrypted messaging can work over 3G or Wi-Fi connections.
• Reminders: a task management system that lets you group tasks together, and assign time- or location-based reminder alerts. You can be reminded to call someone when you leave a given location, for example. Reminders are viewable in iCal and Outlook, and are updated automatically.
• Improved mail client: adding features such as rich-text formatting, control indentation, draggable addresses, flagging, among other changes; also support for S/MIME to encrypt emails, a feature enterprises will welcome; an onboard dictionary is now a service in iOS 5.
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