Sure, you can drop $549.99 for the myTouch 3G Slide at Best Buy (that's full retail, in case you were wondering), but for those not looking to spend their life savings, Walmart has opened pre-orders for the Android-powered device.  Though it's $20 higher than T-Mobile's price, Walmart's $199.99 price skips the mail-in rebate.  The remaining question is whether the device will ship in time for the June 2nd launch date.  Anyone planning a purchase?

Via TmoNews