T-Mobile's Sidekick LX 2009 represented a huge leap forward in the hiptop sector. Not only was the swiveling motion as smooth as ever here, but this was the first Sidekick that seemed to really take its user interface seriously. To that end, we're interested in knowing how you -- the opinionated consumer -- feel about Danger's latest effort. Are you impressed by the grown-up features? Does the form factor still have a place in your life? Is the UI snappy enough? Do you still get enough stares from potential mates when you whip it out on the subway? The floor's yours, make it good.Filed under: Cellphones