It's been a banner year for cellphones-one that brought us the iPhone, mobile TV and new open-source systems. But as always, two months before 2008 rolls in, fresh offerings already have us salivating. Smartphones are getting smarter, incorporating video calling, touchscreens and easy IM access. Free services are experiencing a renaissance, sprouting practical and well-designed applications that offer everything from step-by-step driving directions to lists of your friends' top-rated nearby eateries.