Like your Samsung Galaxy S with a slide-out QWERTY keyboard and a dash of WiMAX? Sprint's website has finally spilled the beans: the Epic 4G will arrive Tuesday, August 31st for $249.99 on contract (after $150 instant rebate and $100 mail-in rebate). Oddly enough, we've gotten a number of screencaps from readers who see an August 20th date, one that coincides with an upcoming Epic 4G promo we caught wind of, but the press release definitively lists the 31st. No way to pre-order at this point -- reservations begin Friday, according to the press release -- but feel free to sign up for reminders. Whew, glad that mystery's finally solved. PR after the break.

Update: With Sprint now offering two Android-powered 4G smartphones, you're probably wondering, Epic 4G or EVO 4G? Fortunately, Sprint's got a video laying out the differences highlighting the Epic's Super AMOLED display, keyboard, Samsung Media Hub movie store (available post-launch), and DLNA to wirelessly send pics and video to other DLNA devices in the home. Check it out after the break.

Update 2: Although reservations for in-store pickup aren't set to begin until tomorrow, we've been tipped on a reservation link intended for premier customers