South Korean mobile phone maker Samsung announced a few weeks ago plans to have its Android 2.1-based Samsung Galaxy S device available for purchase in the United States via all major carriers in the country, and via other operators as well, and a few more details on two models have just emerged. We're referring here to the Smasung Captivate and Samsung Vibrant, which are expected to become available for purchase next week via AT&T and T-Mobile, respectively.

Previous reports on T-Mobile and its version of Galaxy S, dubbed Vibrant, suggested that we're to see the handset put on sale come July 21. However, it seems that things have been speed up, and that the wireless carrier plans on releasing the phone on July 15, one week earlier, at least this is waht a recent post on TmoNews states. Next Thursday would be the lucky day for enthusiasts; it seems, the same day when Verizon puts on shelves another high-end Android-based device, the DROID X by Motorola.

In related news, we learn that AT&T too would intend to make its version of Galaxy S available for purchase next week. July 18 should bring the Samsung Captivate on AT&T's airwaves, in case the rumors pan out in the end. Only three days behind T-Mobile, the wireless carrier would still be among the first to offer its users the possibility to acquire the high-end device. Of course, nothing is official for the time being, but it might not be too long before they become so.

Samsung's Galaxy S has already managed to prove that it can appeal to a large number of users. Released in Korea a couple of weeks ago, the handset was sold in 200,000 units within 10 days from launch. Its features make it so appealing, it seems, including the 4-inch WVGA Super AMOLED display, the 5-megapixel photo snapper with 720p video recording, the Wi-Fi b/g/n and Bluetooth 3.0 connectivity options, or that Android 2.1 operating system loaded on it (with a promised Android 2.2 Froyo update in the near future).