A vast number of our users are on the Windows Phone 8.1 Developer Preview.
The good news is that next week you should automatically be prompted to update to the next version of Windows Phone 8.1, Update 1, which brings numerous new features, including new folders, SMS improvements and much more.
Of course you would still be lacking some hardware features such as Bluetooth LE support, and it may make a lot more sense to actually downgrade and next week install the new developer preview.
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