Congrats to huddle for becoming the only UK company to make it onto LinkedIn’s new applications platform launch. In fact, the only European company to make it, swimming alongside big fish such as Google and Amazon.LinkedIn (a business connections site) has over 29 million users worldwide, so this is a major opportunity for Andy McLoughlin and the guys at huddle. It looks set to increase their userbase exponentially.If you don’t know huddle yet, it’s an online project management facility that uses social networking principles to allow groups of people to edit, store, arrange and collaborate on documents online.We spoke to Andy and Zuzanna Pasierbinska from huddle last night at the great Silicon Stilettos meet-up in London, and both seemed – perhaps predictably – elated. And exhausted, having been on the go for around two sleepless days by that point. “It’s just all happened really quickly,” said the lovely Andy, “There’s been so much going on.”But I’m sure the work hard play hard ethic will start balancing out tonight as the weekend draws nigh.