Been using the EE ROM for 2 weeks now.... Stop moaning and flash the f**king thing!! It's freely available.
I realise you would have to reinstall the apps from scratch, but at least you will have it.....
I didn't mind flashing my Lumia 800 because I understood that phone was fundamentally obsolete and I would probably never get the update.
But with the Lumia 920, this is a flagship phone and will continue to get updates even past 8.1. Its not worth the risking flashing a device, and people shouldn't have to flash their device to get the update in reasonable time.
I've been very patient with updates for Windows Phone since it launched in 2010, but this hold up on GDR2 is stupid. The 920 on ATT is the big flagship device for WP8. Why is it the last device? ATT needs to get it together.