samsung-galaxy-s-ii-4gBoost Mobile customers got an early holiday present on Wednesday, as the carrier announced it will offer a cornucopia of Samsung devices this fall. Easily the biggest of the three handsets unveiled at Boost’s media event in New York is the Samsung Galaxy S II 4G, which will come in at a compelling $369.99 when it’s released on Sept. 6. But there’s more.

In addition to the S II, Boost is also offering the Samsung Galaxy Rush and Samsung Array, both affordable low-end Android options. While not offering up the glitz of the S II, the Rush and Array would be excellent devices for the younger crowd or someone who isn’t a heavy smartphone user.

Boost is the first no-contract carrier in the U.S. to offer up the Galaxy S II 4G, and if history tells us anything, this one will add even more coin to Samsung’s pocket.

“Together with Samsung we continue to launch compelling device options from entry level to 4G-enabled smartphone to meet the evolving needs of our customers,” said Andre Smith, vice president of Boost Mobile.

The S II 4G will arrive equipped with Android 4.0, 4.52-inch Super AMOLED Plus display, 8-megapixel camera, 1.2GHz dual-core processor, 16GB internal memory and hotspot capabilities (additional $10/month fee). Yeah, sure, it’s no Galaxy S III (that’s obvious from the name), but paired with an unlimited plan for as low as $40, it’s a very cogent offer.

Samsung’s Galaxy Rush will come with Android 4.0 as well and retail for $149.99 in late September. Other specs include a 3.5-inch screen and 3-megapixel rear camera (1.3-megapixel front). The Array will cost just $59.99 on Sept. 4, include a full slide-out QWERTY keyboard, 2-megapixel rear camera and 2.4-inch LCD screen.

All three devices can be purchased and used with Boost’s Shrinking Payments option. “For every six on-time payments, the cost of Boost Mobile’s Monthly Unlimited plan shrinks by $5, eventually getting down to as low as $40 a month for unlimited talk, text and data,” Boost said.