Portfolio rocks our world again, this time with a first look of Twenty8Twelve. The line is designed by Savannah Miller and her sister Sienna; Portfolio's Lauren Goldstein Crowe says it's "by far the best "celebrity collection" to date." It's also the most expensive - the clothes will retail from $150 - $500, but judging from the first photos, it's worth it - especially that white pleated dress. But maybe the line itself isn't as exciting as where it will retail: We hear Twenty8Twelve will have its very own London shop, where it will sell clothes from the line, plus related accessories. This means rabid Sienna fans might catch a glimpse of the star just by going shopping. It also means there's crossover potential in the States - don't you think Barneys will want an annexed Twenty8Twelve boutique in the Coop?