Dublin-based white-label mobile social media app maker NewBay has scored a 6.5 million euro ($4.96 million) second round investment to accelerate R&D and international rollout. The funding is led by Fidelity Ventures with participation from Balderton Capital. NewBay has powered photoblogging services for Orange, Alltel (NYSE: AT) and Vodafone (NYSE: VOD), as well as O2’s Bluebook backup service, which it relaunched yesterday. Its services to mobile operators, who rebadge them for customers, include blogging, social profiles, backup, events, network-based address book and upload to third-party social sites.