Update: T-Mobile has updated their support doc to reflect the update will begin at 11pm Eastern, 8pm Pacific.

Heads up Galaxy S II owners, Ice Cream Sandwich is ready and waiting. Right on schedule, T-Mobile has released the ICS update for the Galaxy S II smartphone via Samsung Kies. T-Mobile dropped word via Twitter back on June 1st that the update would launch and right as the clock struck 12, the update started going out. You can hit the Samsung link below to grab their Kies software and begin your journey to Ice Cream Sandwich glory.

Now the real question, will the Galaxy S II with Ice Cream Sandwich provide enough incentive to keep you from grabbingthe Galaxy S III?

Download Samsung Kies then go to T-Mobile’s support page for directions on how to perform the update.