If you're unhappy with AT&Ts network (I'm looking at you, iPhone users), help is on the way. No, they aren't fixing up their network. Instead, they're offering up a 3G MicroCell, which is basically a mini celltower for your home or office, promising to boost your signal in any annoying dead zones you have.
The MicroCell will set you back $150 with no monthly fee, which isn't too bad if you're constantly frustrated by dropped calls. Look for it to go on sale in mid-April.