From the tallest skyscraper in the City of Brotherly Love to Canadian tourism copywriting brilliance, here's what you should know from our -ist cities: This week, Phillyist took a gleeful listen to the White Stripes' exciting new release, watched in awe as their new tallest skyscraper was finally completed, found a cheaper way to get to Gothamist, invented a tasty new dessert, and brought back their Craigslist Round-Up feature with a bang. Bostonist watches......

A couple days ago, NYC Mayor Bloomberg proclaimed that by October 2012, all yellow taxis in NYC will be hybrid. It's true that New York City has far more cabs than our city, but this idea sounds like something Austin would be the first to consider. After hearing of the NY decision, Austin councilmember Martinez told News8Austin that soon, our fair city may ask (require?) contractors, as well as city fleets, to move towards......