Samsung Galaxy S2 remains coming soon with its price tag yet to be revealed. Some customers are angry at the postponed release of the smartphone, which was proposed for a Sept. 18 release.

While Sprint customers can enjoy their version of Galaxy S2, the Epic 4G Touch released on Friday, many AT&T users are waiting for the device.

New rumors speculate that the release date of Galaxy S2 may wait until after Apple's iPhone 5 rolls out.

Angry customers hungry for the highly anticipated smartphone may abandon AT&T for Sprint. Indeed, a comment posted on Betanews responding to the non-event of Samsung Galaxy S2 release confirms it:

I have jumped ship from ATT to Sprint. I am tired of being told 'no release date yet' by AT&T reps, said Eric Echter.

To be honest, the family plan I have now from Sprint far exceeds what AT&T can offer. On top of that, I got $250 credit for port-ins from AT&T (available through Oct 1). Sprint actually seems to care about my business also!! Loving the Galaxy S II (Epic Touch 4 G) on my new Sprint package!!

It's a shame for AT&T to lose its customers by failing to meet their urgent greed for a phone. But the carrier is expected to offer the first GSM Samsung Galaxy S2 variant.

AT&T prides their Samsung Galaxy S2 to be the thinnest smartphone by Samsung, measuring only 9mm thickness, while Sprint's Galaxy S2 Epic 4G Touch comes with a larger screen, 4.52 inch, and measures 10mm.

The AT&T version, which retains 4.3-inch display, is expected to feature 125.3 x 66.1 x 8.5 mm and weighs 116 g.

Galaxy S2 runs on Android 2.3 Gingerbread OS and sports Samsung's TouchWiz UI. The device sports an 8 MP rear camera with flash and can record HD video in 1080p, offering the richest video content on a smartphone. The phone also has the front-facing 2 MP camera for video chat.

It is powered by a dual-core 1.2 GHz ARM Cortex-A9 Mali-400MP GPU Orion chipset. The phone comes in 16/32GB internal memory configuration with 1GB RAM.