The new iPhone 4 has the best things in it for both iPhone Developers and iPhone users. One of the best things about it is its Retina Display with 960×640 pixels. Its screen clarity is just WOW! Above all, we iPhone Developers doesn’t really need to rescale our apps to match this new display quality density as we do it on other platforms like Android where we need to design your app keeping different screen densities in our mind. Whereas, iPhone does it all by its own and what else, it makes your existing app looks really better but if you try and enhance it it’ll look stunning on the new iPhone 4.

All together the new iPhone has lots of great new hardware features added in it. Do return to this blog to get new details on iPhone 4.

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If you too are experiencing the same problem, here is the solution to continue iPhone development with iPhone SDK 3.0 for your iPhone running iPhone OS 3.0.1.

1. Log-in to your MAC with an Admin account and launch the Terminal application (You will find it in /Applications/Utilities)
2. Copy and Paste the following line into the Terminal window
ln -s /Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.0\ \(7A341\) /Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.0.1

Note: If you have not installed iPhone SDK 3.0 in the default location “/Developer”, replace the “/Developer” directory in the above line as appropriate.

You can download the iPhone 3.0.1 Advisory guidelines document from iPhone Dev Portal

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