Browser-maker Opera has inked a licensing agreement with Microsoft that will see its browser become the default for all phones on Microsoft’s Series 30+, Series 40 and Asha software platforms. Windows Phone may be struggling to rival iOS and Android on market share but the Nokia brand, which Microsoft now owns, remains strong in the emerging world. We noted that when Microsoft launched the $25 Nokia 130 earlier this month, a move that signaled its intention to remain in the entry-level market because “Microsoft doesn’t have any other project that can reach these consumers.”