Hey Jtull,I had that problem at first but I think I fixed it: go to your wifi settings and press the menu button, then advanced settings. Make sure "Auto Network Switch" is unchecked. Mine hasn't dropped since.
Just got mine this morning and it is awesome! I was apparently the first person to get one from that store according to the rep Anyone know how we can claim the $50 rebate, though? I asked them to apply the cost to my bill if that matters.