Like it or not, the border of Crown Heights and Prospect Heights is getting hipper by the day. Last month, it was news of Tracy Westmoreland’s new bar Manhattans at 748 Washington Avenue. Now, courtesy of a reader, comes word of a store called Skateboards, Flowers and Dry Goods at 533 Park Place between Grand and Classon. And don’t forget about the restaurant Abigail which is a couple of blocks away on Classon and the bar Franklin Park which opened a year ago. Anyone been in the store yet? When did it open? GMAP