Earlier this month the Samsung Galaxy S II to much fanfare.

T-Mobile, which plans to offer the Android smartphone, was at the press conference but didn't release any details at the time. Samsung employees were instructed to keep their lips sealed about the T-Mobile version, which was rumored to be more powerful and faster than its counterparts.

But now it looks like one Samsung employee didn't get the memo.

On Tuesday, the official Galaxy S Support Twitter account responded to a customer inquiry and leaked the processor model in T-Mobile's unannounced Galaxy S II.

"The Samsung #GalaxyS2 comes with a 1.5 dual core Qualcomm APQ8060 processor. ^Scot," tweeted @GalaxySsupport.

Phonedog, which got the scoop, said this complements a longstanding rumor that T-Mobile will pack a Qualcomm processor in its version, so it can be paired with an MDM8220 modem, which would allow the Galaxy S II to run on T-Mobile's 42Mbps HSPA+ network.

T-Mobile declined to comment.

By comparison, the Galaxy S II carried by AT&T and Sprint (re-branded as the Epic 4G) use a 1.2-Ghz, dual-core Samsung Exynos processor. See how the AT&T and Sprint versions stack up in and the slideshow below.

According to Samsung, the Galaxy S II is Samsung's fastest-selling smartphone to date, selling 85 million units in 85 days in Europe and Asia.