Are you the kind of hulking man-monster than accidentally crushes tiny conventional smartphones in your Bunyan-like grasp? Alternately, do you always carry a purse (you too, ladies) and prefer a phone with as big a screen as possible? And are you a current or prospective US Cellular customer? Well then, prepare to have your day made. The leviathan Samsung Galaxy Mega 6.3 goes on sale for US Cellular tomorrow for $149.99 on-contract after an instant rebate.