Ok let me Rephrase this
WHAT FIREARM HAD THE BIGGEST IMPACT IN THE GUN WORLD IN THE LAST DECADE?
Just start a new thread, for that one.
If I had to choose a firearm, I'd say the Kimber K6s. It's the only recent, or "new" forearm I have bought, lately, with any innovation I can honestly place in this "decade". It brings a lot to the table, which involves many of us.
It's dedicated to conceal carry
It's Stainless, but brushed, an attractive low gloss finish
It's six shot
It's .357, presents both structural strength and two caliber options
It's got great sights
It's got a world class DA trigger
It's got a specifically snag-free profile
It's a revolver, hammerless, and well-made
OTOH, this issue, as many have stated is subjective. IMO, certain improvements, like Ruger's MKIV take down improvement, or the Blackhawk Hunter's
beefy scope mount, rate attention, as well as many other optics and other improvements in design, which don't or shouldn't neccessarily point to just one firearm.