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iOS 5 will block access to UDID on iDevices

August 20, 2011  |  iPad News  |  Share

iOS UDIDUDID has been a very important too, or feature, or protocol, for iOS developers and ad agencies alike. But now, it is all going to change with the public launch of iOS 5. If you dont exactly know what a UDID is, it is a unique identification number for your iDevice. Your iDevice can be tracked from anywhere in the world if your UDID is known.

This has been of great help for ad agencies as they can literally track the impressions and ad clicks of each device on an app to app basis. Even developers can use the UDID info in lot may ways. But Apple, all of a sudden and without any prior notice, is removing the feature from iOS 5.

TechCrunch rightly mentions that iOS developers will have to start writing codes from scratch to facilitate the new technology to keep track of users of their apps, this could suck a considerate amount of juice from one’s life. Apple describes this change in the developer documentation as follows:

Deprecated in iOS 5.0

uniqueIdentifierAn alphanumeric string unique to each device based on various hardware details. (read-only) (Deprecated in iOS 5.0. Instead, create a unique identifier specific to your app.)

This will even affect the game networks in the iOS space as they will not be able to track devices. And ad agencies will have to rely on the cookies in the browser to keep track of the ads that are interacting with the users. Will this also mean that in-app and in-game ads will have no value as they cant save cookies in browsers?

Also, AppleInsider is pitching the fact that this will affect iCloud integration as well:

“The change will occur alongside the appearance of iCloud, which will allow apps that the user approves to share a unique key across devices using iCloud’s new Documents and Data feature. For example, a developer can use iCloud to customize the appearance or state of their app across the users’ devices by sharing key value data in the cloud.”

So what do you feel about this?

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